Prosecution Insights
Last updated: April 18, 2026
Application No. 18/019,375

NUCLEIC ACID STRUCTURE

Final Rejection §101§112
Filed
Feb 02, 2023
Examiner
SISSON, BRADLEY L
Art Unit
1682
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
The School Corporation Kansai University
OA Round
2 (Final)
20%
Grant Probability
At Risk
3-4
OA Rounds
5y 5m
To Grant
41%
With Interview

Examiner Intelligence

Grants only 20% of cases
20%
Career Allow Rate
145 granted / 743 resolved
-40.5% vs TC avg
Strong +21% interview lift
Without
With
+21.1%
Interview Lift
resolved cases with interview
Typical timeline
5y 5m
Avg Prosecution
77 currently pending
Career history
820
Total Applications
across all art units

Statute-Specific Performance

§101
20.1%
-19.9% vs TC avg
§103
20.2%
-19.8% vs TC avg
§102
7.4%
-32.6% vs TC avg
§112
45.8%
+5.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 743 resolved cases

Office Action

§101 §112
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Location of Application The subject application is now located in Workgroup 1680, Art Unit 1682, and has been docketed to Primary Examiner Bradley L. Sisson. Drawings New corrected drawings in compliance with 37 CFR 1.121(d) are required in this application because: Figure(s) 1 - 33 are not properly labeled. Note the required use of FIG., not “Fig.”. See 37 CFR 1.84(u)(1). The lettering is not of proper size, uniform density, and well-defined in Figure(s) 1-7, 11, 12, 14-15, 18-19, 22-24, 26-28, and 30-32. See 37 CFR 1.84(p)(1) – (5) and 37 CFR 1.84(l). (“Numbers, letters, and reference characters must measure at least .32 cm (1/8 inch) in height.”) The shading in Figure(s) 12, 16, 20, 24, and 28 is of poor quality and does not sufficiently contrast with the rest of the drawing(s). See 37 CFR 1.84(m). The scale of drawings in Figures(s) 1-10, 13, 17, 21, 25, 30, and 31 is not of sufficient size. See 37 CFR 1.84(k). The margins are not of proper size in Figure(s) 1 - 33. See 37 CFR 1.84(g). The numbering of the sheets of drawings bearing FIG(s). 1 - 33 is not in compliance with all aspects of 37 CFR 1.84(t). Note that the sheet numbers is not placed in the margin. Applicant is advised to employ the services of a competent patent draftsperson outside the Office, as the U.S. Patent and Trademark Office no longer prepares new drawings. The corrected drawings are required in reply to the Office action to avoid abandonment of the application. The requirement for corrected drawings will not be held in abeyance. INFORMATION ON HOW TO EFFECT DRAWING CHANGES Replacement Drawing Sheets Drawing changes must be made by presenting replacement sheets which incorporate the desired changes and which comply with 37 CFR 1.84. An explanation of the changes made must be presented either in the drawing amendments section, or remarks, section of the amendment paper. Each drawing sheet submitted after the filing date of an application must be labeled in the top margin as either “Replacement Sheet” or “New Sheet” pursuant to 37 CFR 1.121(d). A replacement sheet must include all of the figures appearing on the immediate prior version of the sheet, even if only one figure is being amended. The figure or figure number of the amended drawing(s) must not be labeled as “amended.” If the changes to the drawing figure(s) are not accepted by the examiner, applicant will be notified of any required corrective action in the next Office action. No further drawing submission will be required, unless applicant is notified. Identifying indicia, if provided, should include the title of the invention, inventor’s name, and application number, or docket number (if any) if an application number has not been assigned to the application. If this information is provided, it must be placed on the front of each sheet and within the top margin. Annotated Drawing Sheets A marked-up copy of any amended drawing figure, including annotations indicating the changes made, are required by the examiner. The annotated drawing sheet(s) must be clearly labeled as “Annotated Sheet” and must be presented in the amendment or remarks section that explains the change(s) to the drawings. Timing of Corrections Applicant is required to submit acceptable corrected drawings within the time period set in the Office action. See 37 CFR 1.85(a). Failure to take corrective action within the set period will result in ABANDONMENT of the application. If corrected drawings are required in a Notice of Allowability (PTOL-37), the new drawings MUST be filed within the THREE MONTH shortened statutory period set for reply in the “Notice of Allowability.” Extensions of time may NOT be obtained under the provisions of 37 CFR 1.136 for filing the corrected drawings after the mailing of a Notice of Allowability. Specification The disclosure is objected to because it contains an embedded hyperlink and/or other form of browser-executable code. Applicant is required to delete the embedded hyperlink and/or other form of browser-executable code; references to websites should be limited to the top-level domain name without any prefix such as http:// or other browser-executable code. See MPEP § 608.01. See, for example, page 9, line 5, of the disclosure. Claim Interpretation Attention is directed to MPEP 904.01 [R-08.2012]. The breadth of the claims in the application should always be carefully noted; that is, the examiner should be fully aware of what the claims do not call for, as well as what they do require. During patent examination, the claims are given the broadest reasonable interpretation consistent with the specification. See In re Morris, 127 F.3d 1048, 44 USPQ2d 1023 (Fed. Cir. 1997). See MPEP § 2111 - § 2116.01 for case law pertinent to claim analysis. It is noted with particularity that narrowing limitations found in the specification cannot be inferred in the claims where the elements not set forth in the claims are linchpin of patentability. In re Philips Industries v. State Stove & Mfg. Co, Inc., 186 USPQ 458 (CA6 1975). While the claims are to be interpreted in light of the specification, it does not follow that limitations from the specification may be read into the claims. On the contrary, claims must be interpreted as broadly as their terms reasonably allow. See Ex parte Oetiker, 23 USPQ2d 1641 (BPAI, 1992). In added support of this position, attention is directed to MPEP 2111 [R-11.2013], where, citing In re Prater, 415 F.2d 1393, 1404-05, 162 USPQ 541, 550-51 (CCPA 1969), is stated: The court explained that “reading a claim in light of the specification, to thereby interpret limitations explicitly recited in the claim, is a quite different thing from ‘reading limitations of the specification into a claim,’ to thereby narrow the scope of the claim by implicitly adding disclosed limitations which have no express basis in the claim.” The court found that applicant was advocating the latter, i.e., the impermissible importation of subject matter from the specification into the claim. Additionally, attention is directed to MPEP 2111.01 [R-01.2024], wherein is stated: II. IT IS IMPROPER TO IMPORT CLAIM LIMITATIONS FROM THE SPECIFICATION “Though understanding the claim language may be aided by explanations contained in the written description, it is important not to import into a claim limitations that are not part of the claim. For example, a particular embodiment appearing in the written description may not be read into a claim when the claim language is broader than the embodiment.” Superguide Corp. v. DirecTV Enterprises, Inc., 358 F.3d 870, 875, 69 USPQ2d 1865, 1868 (Fed. Cir. 2004). Attention is also directed to MPEP 2111.02 II [R-07.2022]. As stated herein: II. PREAMBLE STATEMENTS RECITING PURPOSE OR INTENDED USE PNG media_image1.png 18 19 media_image1.png Greyscale The claim preamble must be read in the context of the entire claim. The determination of whether preamble recitations are structural limitations or mere statements of purpose or use "can be resolved only on review of the entirety of the [record] to gain an understanding of what the inventors actually invented and intended to encompass by the claim" as drafted without importing "'extraneous' limitations from the specification." Corning Glass Works, 868 F.2d at 1257, 9 USPQ2d at 1966. If the body of a claim fully and intrinsically sets forth all of the limitations of the claimed invention, and the preamble merely states, for example, the purpose or intended use of the invention, rather than any distinct definition of any of the claimed invention’s limitations, then the preamble is not considered a limitation and is of no significance to claim construction. Shoes by Firebug LLC v. Stride Rite Children’s Grp., LLC, 962 F.3d 1362, 2020 USPQ2d 10701 (Fed. Cir. 2020) (The court found that the preamble in one patent’s claim is limiting but is not in a related patent); Pitney Bowes, Inc. v. Hewlett-Packard Co., 182 F.3d 1298, 1305, 51 USPQ2d 1161, 1165 (Fed. Cir. 1999). See also Rowe v. Dror, 112 F.3d 473, 478, 42 USPQ2d 1550, 1553 (Fed. Cir. 1997) ("where a patentee defines a structurally complete invention in the claim body and uses the preamble only to state a purpose or intended use for the invention, the preamble is not a claim limitation")… (Emphasis added) Attention is directed to MPEP 2111 [R-10.2019]. As stated therein: During patent examination, the pending claims must be "given their broadest reasonable interpretation consistent with the specification." The Federal Circuit’s en banc decision in Phillips v. AWH Corp., 415 F.3d 1303, 1316, 75 USPQ2d 1321, 1329 (Fed. Cir. 2005) expressly recognized that the USPTO employs the "broadest reasonable interpretation" standard: The Patent and Trademark Office ("PTO") determines the scope of claims in patent applications not solely on the basis of the claim language, but upon giving claims their broadest reasonable construction "in light of the specification as it would be interpreted by one of ordinary skill in the art." In re Am. Acad. of Sci. Tech. Ctr., 367 F.3d 1359, 1364[, 70 USPQ2d 1827, 1830] (Fed. Cir. 2004). Indeed, the rules of the PTO require that application claims must "conform to the invention as set forth in the remainder of the specification and the terms and phrases used in the claims must find clear support or antecedent basis in the description so that the meaning of the terms in the claims may be ascertainable by reference to the description." 37 CFR 1.75(d)(1). (Emphasis added). Claim Rejections - 35 USC § 112, (d0 / Fourth Paragraph The following is a quotation of 35 U.S.C. 112(d): (d) REFERENCE IN DEPENDENT FORMS.—Subject to subsection (e), a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. The following is a quotation of pre-AIA 35 U.S.C. 112, fourth paragraph: Subject to the following paragraph [i.e., the fifth paragraph of pre-AIA 35 U.S.C. 112], a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. Claims 11, 12, and 13 are rejected under 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, 4th paragraph, as being of improper dependent form for failing to further limit the subject matter of the claim upon which it depends, or for failing to include all the limitations of the claim upon which it depends. Claims 11 and 12 are drawn to “a test substance detection composition”. Such is deemed to fairly broaden the scope of claim 1, which is drawn to “a nucleic acid structure”. Claim 13 is drawn to a method, yet depends from claim 1 which is drawn to a product- “a nucleic acid composition”. The composition claims and the method claim are not found to further limit the product claim, claim 1, from which they each depend. Applicant may cancel the claim(s), amend the claim(s) to place the claim(s) in proper dependent form, rewrite the claim(s) in independent form, or present a sufficient showing that the dependent claim(s) complies with the statutory requirements. Claim Rejections - 35 USC § 112, (b) / Second Paragraph The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Standard for Definiteness. Attention is directed to MPEP 2171 [R-11.2013]: Two separate requirements are set forth in 35 U.S.C. 112(b) and pre-AIA 35 U.S.C. 112, second paragraph, namely that: (A) the claims must set forth the subject matter that the inventor or a joint inventor regards as the invention; and (B) the claims must particularly point out and distinctly define the metes and bounds of the subject matter to be protected by the patent grant. The first requirement is a subjective one because it is dependent on what the inventor or a joint inventor for a patent regards as his or her invention. Note that although pre-AIA 35 U.S.C. 112, second paragraph, uses the phrase "which applicant regards as his invention," pre-AIA 37 CFR 1.41(a) provides that a patent is applied for in the name or names of the actual inventor or inventors. The second requirement is an objective one because it is not dependent on the views of the inventor or any particular individual, but is evaluated in the context of whether the claim is definite — i.e., whether the scope of the claim is clear to a hypothetical person possessing the ordinary level of skill in the pertinent art. Attention is directed to MPEP 2173.02 I [R-07.2022]: During prosecution, applicant has an opportunity and a duty to amend ambiguous claims to clearly and precisely define the metes and bounds of the claimed invention. The claim places the public on notice of the scope of the patentee’s right to exclude. See, e.g., Johnson & Johnston Assoc. Inc. v. R.E. Serv. Co., 285 F.3d 1046, 1052, 62 USPQ2d 1225, 1228 (Fed. Cir. 2002) (en banc). As the Federal Circuit stated in Halliburton Energy Servs., Inc. v. M-I LLC, 514 F.3d 1244, 1255, 85 USPQ2d 1654, 1663 (Fed. Cir. 2008): “We note that the patent drafter is in the best position to resolve the ambiguity in the patent claims, and it is highly desirable that patent examiners demand that applicants do so in appropriate circumstances so that the patent can be amended during prosecution rather than attempting to resolve the ambiguity in litigation.” *** During examination, after applying the broadest reasonable interpretation to the claim, if the metes and bounds of the claimed invention are not clear, the claim is indefinite and should be rejected. Packard, 751 F.3d at 1310 (“[W]hen the USPTO has initially issued a well-grounded rejection that identifies ways in which language in a claim is ambiguous, vague, incoherent, opaque, or otherwise unclear in describing and defining the claimed invention, and thereafter the applicant fails to provide a satisfactory response, the USPTO can properly reject the claim as failing to meet the statutory requirements of § 112(b).”); Zletz, 893 F.2d at 322, 13 USPQ2d at 1322. Attention is also directed to MPEP 2173.02 III B, which states in part: To comply with 35 U.S.C. 112(b) or pre-AIA 35 U.S.C. 112, second paragraph, applicants are required to make the terms that are used to define the invention clear and precise, so that the metes and bounds of the subject matter that will be protected by the patent grant can be ascertained. See MPEP § 2173.05(a), subsection I. It is important that a person of ordinary skill in the art be able to interpret the metes and bounds of the claims so as to understand how to avoid infringement of the patent that ultimately issues from the application being examined. See MPEP § 2173.02, subsection II (citing Morton Int ’l, Inc. v. Cardinal Chem. Co., 5 F.3d 1464, 1470 (Fed. Cir. 1993)); see also Halliburton Energy Servs., 514 F.3d at 1249, 85 USPQ2d at 1658 (“Otherwise, competitors cannot avoid infringement, defeating the public notice function of patent claims.”). Examiners should bear in mind that “[a]n essential purpose of patent examination is to fashion claims that are precise, clear, correct, and unambiguous. Only in this way can uncertainties of claim scope be removed, as much as possible, during the administrative process.” Zletz, 893 F.2d at 322, 13 USPQ2d at 1322 [Fed. Cir. 1989]. (Emphasis added) Attention is also directed to MPEP 2173.04 [R-10.2019], which states in part: A broad claim is not indefinite merely because it encompasses a wide scope of subject matter provided the scope is clearly defined. But a claim is indefinite when the boundaries of the protected subject matter are not clearly delineated and the scope is unclear. For example, a genus claim that covers multiple species is broad, but is not indefinite because of its breadth, which is otherwise clear. But a genus claim that could be interpreted in such a way that it is not clear which species are covered would be indefinite (e.g., because there is more than one reasonable interpretation of what species are included in the claim). (Emphasis added) Holding and Rationale Claims 1-13 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 1 is indefinite with respect to what constitutes the metes and bounds of “a nucleic acid structure”, “a partial nucleic acid structure 1” , “a partial nucleic acid structure 2”, “a Holliday junction”, “a protruding structure 1a”, “a protruding structure 1b” , “a protruding structure 2a”, and “a protruding structure 2b”, “split domain 1”, “split domain 2”, and “complementary to part”. Claim 1 is indefinite with respect to whether the aptamer is DNA or RNA and what length, or range of lengths, the “aptamer” can have. In support of this position attention is directed to the following documents which teach of a variety of ranges that an aptamer can have. US 2003/0175703 A1 (Sullenger et al.), at paragraph [0087], teach: [0087] In general, aptamers preferably comprise about 10 to about 100 nucleotides, preferably about 15 to about 40 nucleotides, more preferably about 20 to about 40 nucleotides, in that oligonucleotides of a length that falls within these ranges are readily prepared by conventional techniques. (Emphasis added) US 2005/0208469 A1 (Daunert et al.), at paragraph [0064], teach: Aptamers are single-stranded DNA or RNA molecules that bind with high affinity to specific target or analyte molecules. Such analyte molecules can be drugs, vitamins, hormones, antibodies, enzymes, co-factors, nucleotides, proteins and so forth. Aptamers can range from between 8 to 120 or more nucleotides in length. (Emphasis added) Claims 2-13, which depend from claim 1, fail to overcome all of the above identified issues and are similarly rejected. The term “elongated” in claim 2 is a relative term which renders the claim indefinite. The term “elongated” is not defined by the claim, the specification does not provide a standard for ascertaining the requisite degree, and one of ordinary skill in the art would not be reasonably apprised of the scope of the invention. The term “complementary” in claim 3 is a relative term which renders the claim indefinite. The term “complementary” is not defined by the claim, the specification does not provide a standard for ascertaining the requisite degree, and one of ordinary skill in the art would not be reasonably apprised of the scope of the invention. Claim 3 is indefinite with respect to what constitutes the metes and bounds of “a staple nucleic acid”. Claim 4, 5, and 6 are indefinite with respect to what constitutes the metes ad bounds of nucleic acids that “face each other”. Claim 4 is also indefinite with respect to whether that which is found within the parentheses are limitations of the claim. Claim 4 is indefinite with respect to what constitutes the metes and bounds of “mediates” as used in the phrase “mediates structural changes”. Claim 4 is also indefinite with respect to how the verb “taking” is to be construed. Claim 5 is indefinite with respect to what constitutes the metes and bounds of “a recognition substance”. The term “more” in claim 7 is a relative term which renders the claim indefinite. The term “more” is not defined by the claim, the specification does not provide a standard for ascertaining the requisite degree, and one of ordinary skill in the art would not be reasonably apprised of the scope of the invention. Claim 8 is indefinite with respect to what constitutes the metes and bounds of “a biological material.” Claims 8 and 9 recite the limitation "the recognition substance" in line 2 of each claim. There is insufficient antecedent basis for this limitation in the claims. Claim 9 is indefinite with respect to just which molecules of “nucleic acids, proteins, peptides, low-molecular-weight compounds, physiologically active substances and metal ions” are encompassed by the claim. It is recognized that there is not a single standard definition ofr “low-molecular-weight compounds”. In support of this position attention is directed to US 2018/0081271 A1 (Nagamine et al.), which teaches at paragraph [0052]: [0052] In general, as a non-polymer, any of those which have a molecular weight in the range of 500 to less than 4,000 is used. Hereafter, a “low molecular weight compound” refers to a non-polymer having a molecular weight in the range of 500 to less than 4,000. (Emphaasis added) Attention is also directed to US 2018/0087010 A1 (Takahashi et al.), which teaches at paragraph [224]: [0224] The molecular weight range of the low-molecular-weight compound [N-C] is preferably from 100 to 1,000, more preferably from 200 to 900, and particularly preferably 300 to 800. (Emphasis added) Claim 10 is indefinite with respect to what constitutes the metes and bounds of “a nano-structure.” Claims 11 and 12 are indefinite with respect to just which substance(s) is/are to be detected by the claimed “composition”. Claim Rejections - 35 USC § 101 & 112 35 U.S.C. 101 reads as follows: Whoever invents or discovers any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof, may obtain a patent therefor, subject to the conditions and requirements of this title. The following is a quotation of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), first paragraph: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claims 1-13 are rejected under 35 U.S.C. 101 because the claimed invention is not supported by either a specific, substantial, and credible asserted utility or a well-established utility. Attention is also directed to MPEP 2107.02 I [R-07.2022], which states in part: The claimed invention is the focus of the assessment of whether an applicant has satisfied the utility requirement. Each claim (i.e., each “invention”), therefore, must be evaluated on its own merits for compliance with all statutory requirements… Only where it can be established that other species clearly encompassed by the claim do not have utility should a rejection be imposed on the generic claim. In such cases, the applicant should be encouraged to amend the generic claim so as to exclude the species that lack utility. (Emphasis added) Attention is also directed to MPEP 2106.03 II [R-07.2022]: A claim whose BRI covers both statutory and non-statutory embodiments embraces subject matter that is not eligible for patent protection and therefore is directed to non-statutory subject matter. Such claims fail the first step (Step 1: NO) and should be rejected under 35 U.S.C. 101, for at least this reason. In such a case, it is a best practice for the examiner to point out the BRI and recommend an amendment, if possible, that would narrow the claim to those embodiments that fall within a statutory category. Attention is also directed to MPEP 2107.01 I [R-07.2022], which states in part: A. Specific Utility A "specific utility" is specific to the subject matter claimed and can "provide a well-defined and particular benefit to the public." In re Fisher, 421 F.3d 1365, 1371, 76 USPQ2d 1225, 1230 (Fed. Cir. 2005). This contrasts with a general utility that would be applicable to the broad class of the invention. Office personnel should distinguish between situations where an applicant has disclosed a specific use for or application of the invention and situations where the applicant merely indicates that the invention may prove useful without identifying with specificity why it is considered useful. For example, indicating that a compound may be useful in treating unspecified disorders, or that the compound has "useful biological" properties, would not be sufficient to define a specific utility for the compound. See, e.g., In re Kirk, 376 F.2d 936, 153 USPQ 48 (CCPA 1967); In re Joly, 376 F.2d 906, 153 USPQ 45 (CCPA 1967). Similarly, a claim to a polynucleotide whose use is disclosed simply as a "gene probe" or "chromosome marker" would not be considered to be specific in the absence of a disclosure of a specific DNA target. See In re Fisher, 421 F.3d at 1374, 76 USPQ2d at 1232 ("Any EST [expressed sequence tag] transcribed from any gene in the maize genome has the potential to perform any one of the alleged uses…. Nothing about [applicant’s] seven alleged uses set the five claimed ESTs apart from the more than 32,000 ESTs disclosed in the [ ] application or indeed from any EST derived from any organism. Accordingly, we conclude that [applicant] has only disclosed general uses for its claimed ESTs, not specific ones that satisfy § 101."). A general statement of diagnostic utility, such as diagnosing an unspecified disease, would ordinarily be insufficient absent a disclosure of what condition can be diagnosed. Contrast the situation where an applicant discloses a specific biological activity and reasonably correlates that activity to a disease condition. Assertions falling within the latter category are sufficient to identify a specific utility for the invention. Assertions that fall in the former category are insufficient to define a specific utility for the invention, especially if the assertion takes the form of a general statement that makes it clear that a "useful" invention may arise from what has been disclosed by the applicant. Knapp v. Anderson, 477 F.2d 588, 177 USPQ 688 (CCPA 1973). B. Substantial Utility "[A]n application must show that an invention is useful to the public as disclosed in its current form, not that it may prove useful at some future date after further research. Simply put, to satisfy the ‘substantial’ utility requirement, an asserted use must show that the claimed invention has a significant and presently available benefit to the public." Fisher, 421 F.3d at 1371, 76 USPQ2d at 1230. The claims at issue in Fisher were directed to expressed sequence tags (ESTs), which are short nucleotide sequences that can be used to discover what genes and downstream proteins are expressed in a cell. The court held that "the claimed ESTs can be used only to gain further information about the underlying genes and the proteins encoded for by those genes. The claimed ESTs themselves are not an end of [the inventor’s] research effort, but only tools to be used along the way in the search for a practical utility…. [Applicant] does not identify the function for the underlying protein-encoding genes. Absent such identification, we hold that the claimed ESTs have not been researched and understood to the point of providing an immediate, well-defined, real world benefit to the public meriting the grant of a patent." Id. at 1376, 76 USPQ2d at 1233-34). Thus a "substantial utility" defines a "real world" use. Utilities that require or constitute carrying out further research to identify or reasonably confirm a "real world" context of use are not substantial utilities. For example, both a therapeutic method of treating a known or newly discovered disease and an assay method for identifying compounds that themselves have a "substantial utility" define a "real world" context of use. An assay that measures the presence of a material which has a stated correlation to a predisposition to the onset of a particular disease condition would also define a "real world" context of use in identifying potential candidates for preventive measures or further monitoring. On the other hand, the following are examples of situations that require or constitute carrying out further research to identify or reasonably confirm a "real world" context of use and, therefore, do not define "substantial utilities": (A) Basic research such as studying the properties of the claimed product itself or the mechanisms in which the material is involved; (B) A method of treating an unspecified disease or condition; (C) A method of assaying for or identifying a material that itself has no specific and/or substantial utility; (D) A method of making a material that itself has no specific, substantial, and credible utility; and (E) A claim to an intermediate product for use in making a final product that has no specific, substantial and credible utility. Office personnel must be careful not to interpret the phrase "immediate benefit to the public" or similar formulations in other cases to mean that products or services based on the claimed invention must be "currently available" to the public in order to satisfy the utility requirement. See, e.g., Brenner v. Manson, 383 U.S. 519, 534-35, 148 USPQ 689, 695 (1966). Rather, any reasonable use that an applicant has identified for the invention that can be viewed as providing a public benefit should be accepted as sufficient, at least with regard to defining a "substantial" utility. C. Research Tools Some confusion can result when one attempts to label certain types of inventions as not being capable of having a specific and substantial utility based on the setting in which the invention is to be used. One example is inventions to be used in a research or laboratory setting. Many research tools such as gas chromatographs, screening assays, and nucleotide sequencing techniques have a clear, specific and unquestionable utility (e.g., they are useful in analyzing compounds). An assessment that focuses on whether an invention is useful only in a research setting thus does not address whether the invention is in fact “useful” in a patent sense. Instead, Office personnel must distinguish between inventions that have a specifically identified substantial utility and inventions whose asserted utility requires further research to identify or reasonably confirm. Labels such as “research tool,” “intermediate” or “for research purposes” are not helpful in determining if an applicant has identified a specific and substantial utility for the invention. IV. RELATIONSHIP BETWEEN 35 U.S.C. 112(a) or Pre-AIA 35 U.S.C. 112, FIRST PARAGRAPH, AND 35 U.S.C. 101 A deficiency under the utility prong of35 U.S.C. 101 also creates a deficiency under 35 U.S.C. 112(a) or pre-AIA 35 U.S.C. 112, first paragraph. See In re Brana, 51 F.3d 1560, 34 USPQ2d 1436 (Fed. Cir. 1995); In re Jolles, 628 F.2d 1322, 1326 n.10, 206 USPQ 885, 889 n.11 (CCPA 1980); In re Fouche, 439 F.2d 1237, 1243, 169 USPQ 429, 434 (CCPA 1971) (“If such compositions are in fact useless, appellant’s specification cannot have taught how to use them.”). Courts have also cast the 35 U.S.C. 101/35 U.S.C. 112 relationship such that 35 U.S.C. 112 presupposes compliance with 35 U.S.C. 101. See In re Ziegler, 992 F.2d 1197, 1200-1201, 26 USPQ2d 1600, 1603 (Fed. Cir. 1993) (“The how to use prong of section 112 incorporates as a matter of law the requirement of 35 U.S.C. 101 that the specification disclose as a matter of fact a practical utility for the invention. ... If the application fails as a matter of fact to satisfy 35 U.S.C. § 101, then the application also fails as a matter of law to enable one of ordinary skill in the art to use the invention under 35 U.S.C. § 112.”); In re Kirk, 376 F.2d 936, 942, 153 USPQ 48, 53 (CCPA 1967) (“Necessarily, compliance with § 112 requires a description of how to use presently useful inventions, otherwise an applicant would anomalously be required to teach how to use a useless invention.”). For example, the Federal Circuit noted, “[o]bviously, if a claimed invention does not have utility, the specification cannot enable one to use it.” In re Brana, 51 F.3d 1560, 34 USPQ2d 1436 (Fed. Cir. 1995). As such, a rejection properly imposed under 35 U.S.C. 101 for lack of utility should be accompanied with a rejection under 35 U.S.C. 112(a) or pre-AIA 35 U.S.C. 112, first paragraph. It is equally clear that a rejection based on “lack of utility,” whether grounded upon 35 U.S.C. 101 or 35 U.S.C. 112(a) or pre-AIA 35 U.S.C. 112, first paragraph, rests on the same basis (i.e., the asserted utility is not credible). As presently worded, claims 1-12 are dawn to “a nucleic acid structure” which comprises “nucleic acid aptamer sequence” of undefined specificity; and claim 13, which is drawn to “a method of detecting a test substance” of undefined nature. In support of this position attention is directed to paragraph [0052] of the disclosure. As asserted to therein: [0052] The test substance is not particularly limited as long as it can bind to a nucleic acid aptamer. Examples include nucleic acids, proteins, peptides, low-molecular-weight compounds, physiologically active substances, metal ions, and the like. In an embodiment of the present invention, the test substance is preferably a biological material. (Emphasis added) The claims do not distinguish between those molecules that do and do not have utility under 35 USC 101 but rather, encompasses any and all manner of compounds. While the claim 13 is drawn to a method and not to a product, such does not alter the requirements of satisfying the utility requirements of 35 USC 101. In support of this position, attention is directed to Brenner, Comr. Pats. v. Manson, 148 USPQ 689 (US 1966): Until the process claim has been reduced to production of a product shown to be useful, the metes and bounds of that monopoly are not capable of precise delineation. It may engross a vast, unknown, and perhaps unknowable area. Such a patent may confer power to block off whole areas of scientific development, 22 without compensating benefit to the public. The basic quid pro quo contemplated by the Constitution and the Congress for granting a patent monopoly is the benefit derived by the public from an invention with substantial utility. Unless and until a process is refined and developed to this point-where specific benefit exists in currently available form-there is insufficient justification for permitting an applicant to engross what may prove to be a broad field. (Emphasis added) * * * We find absolutely no warrant for the proposition that although Congress intended that no patent be granted on a chemical compound whose sole "utility" consists of its potential role as an object of use-testing, a different set of rules was meant to apply to the process which yielded the unpatentable product. 24 That proposition seems to us little more than an attempt to evade the impact of the rules which concededly govern patentability of the product itself. This is not to say that we mean to disparage the importance of contributions to the fund of scientific information short of the invention of something "useful," or that we are blind to the prospect that what now seems without "use" may tomorrow command the grateful attention of the public. But a patent is not a hunting license. It is not a reward for the search, but compensation for its successful conclusion. For "specific utility", the invention must have a utility specific to the subject matter claimed in contrast with a general utility that would be applicable to the broad class of the invention. According to 35 U.S.C. 101, a specific utility is not a list of potential applications for which the broad class of the invention would also have utility. To be specific, the application must teach the skilled artisan in specific terms specific biological activities of a diagnosis utility, and reasonably correlate a genomic alteration of a genomic loci to a disease condition. Applicant is urged to consider amending the claims such that the claims are drawn to a compound/composition (e.g., comprises aptamers) whose specificity satisfies the utility requirements of 35 USC 101; and a related method (claim 13) that results in detection of a “test substance” that unquestionably does have utility under 35 USC 101 and which is adequately supported by the original disclosure. Claims 1-13 are also rejected under 35 U.S.C. 112, first paragraph. Specifically, since the claimed invention is not supported by either a specific, substantial, and credible asserted utility or a well-established utility for the reasons set forth above, one skilled in the art clearly would not know how to use the claimed invention. Claim Rejections - 35 USC § 112, Written Description The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Standard for Written Description. Attention is directed to MPEP 2163.02 Standard for Determining Compliance With the Written Description Requirement [R-07-2022]: An objective standard for determining compliance with the written description requirement is, "does the description clearly allow persons of ordinary skill in the art to recognize that he or she invented what is claimed." In re Gosteli, 872 F.2d 1008, 1012, 10 USPQ2d 1614, 1618 (Fed. Cir. 1989). Under Vas-Cath, Inc. v. Mahurkar, 935 F.2d 1555, 1563-64, 19 USPQ2d 1111, 1117 (Fed. Cir. 1991), to satisfy the written description requirement, an applicant must convey with reasonable clarity to those skilled in the art that, as of the filing date sought, he or she was in possession of the invention, and that the invention, in that context, is whatever is now claimed. (Emphasis added) Attention is also set directed to MPEP 2161.01 I [R-07-2022], wherein is stated: For instance, generic claim language in the original disclosure does not satisfy the written description requirement if it fails to support the scope of the genus claimed. Ariad, 598 F.3d at 1349-50, 94 USPQ2d at 1171 ("[A]n adequate written description of a claimed genus requires more than a generic statement of an invention’s boundaries.") (citing Eli Lilly, 119 F.3d at 1568, 43 USPQ2d at 1405-06); Enzo Biochem, Inc. v. Gen-Probe, Inc., 323 F.3d 956, 968, 63 USPQ2d 1609, 1616 (Fed. Cir. 2002) (holding that generic claim language appearing in ipsis verbis in the original specification did not satisfy the written description requirement because it failed to support the scope of the genus claimed); Fiers v. Revel, 984 F.2d 1164, 1170, 25 USPQ2d 1601, 1606 (Fed. Cir. 1993) (rejecting the argument that "only similar language in the specification or original claims is necessary to satisfy the written description requirement"). As set forth in Fiers v. Revel 25 USPQ2d 1601, 1604-5 (CAFC, January 1993): We thus determined that, irrespective of the complexity or simplicity of the method of isolation employed, conception of a DNA, like conception of any chemical substance, requires a definition of that substance other than by its functional utility. Fiers' attempt to distinguish Amgen therefore is incorrect. We also reject Fiers' argument that the existence of a workable method for preparing a DNA establishes conception of that material. (Emphasis added) Conception of a substance claimed per se without reference to a process requires conception of its structure, name, formula, or definitive chemical or physical properties... The difficulty that would arise if we were to hold that a conception occurs when one has only an idea of a compound, defining it by its hoped-for function, is that would-be inventors would file patent applications before they had made their inventions and before they could describe them. That is not consistent with the statute or the policy behind the statute, which is to promote disclosure of inventions. As set forth in the en banc decision in Ariad Pharmaceuticals Inc. v. Eli Lilly and Company, 94 USPQ2d 1161 (Fed. Cir. 2010) at 1171: We held that a sufficient description of a genus instead requires the disclosure of either a representative number of species falling within the scope of the genus or structural features common to the members of the genus so that one of skill in the art can “visualize or recognize” the members of the genus. Id. at 1568-69. We explained that an adequate written description requires a precise definition, such as by structure, formula, chemical name, physical properties, or other properties, of species falling within the genus sufficient to distinguish the genus from other materials. Id. at 1568 (quoting Fiers v. Revel, 984 F.2d 1164, 1171 [25 USPQ2d 1601] (Fed. Cir. 1993)). We have also held that functional claim language can meet the written description requirement when the art has established a correlation between structure and function. See Enzo, 323 F.3d at 964 (quoting 66 Fed. Reg. 1099 (Jan. 5, 2001)). But merely drawing a fence around the outer limits of a purported genus is not an adequate substitute for describing a variety of materials constituting the genus and showing that one has invented a genus and not just a species. *** In Fiers, we rejected the argument that “only similar language in the specification or original claim is necessary to satisfy the written description requirement.” 984 F.2d at 1170 (emphasis added). Rather, we held that original claim language to “a DNA coding for interferon activity” failed to provide an adequate written description as it amounted to no more than a “wish” or “plan” for obtaining the claimed DNA rather than a description of the DNA itself. Id. at 1170-71. That Fiers applied § 112, first paragraph, during an interference is irrelevant for, as we stated above, the statute contains no basis for ignoring the description requirement outside of this context. And again in Enzo we held that generic claim language appearing in ipsis verbis in the original specification does not satisfy the written description requirement if it fails to support the scope of the genus claimed. 323 F.3d at 968. We concluded that “[a] claim does not become more descriptive by its repetition, or its longevity.” Id. at 969. *** The written description requirement also ensures that when a patent claims a genus by its function or result, the specification recites sufficient materials to accomplish that function—a problem that is particularly acute in the biological arts. Attention is also directed to MPEP 2163 Guidelines for the Examination of Patent Applications Under the 35 U.S.C. 112(a) or Pre-AIA 35 U.S.C. 112, first paragraph, “Written Description” Requirement [R-01-2024], at part II ii): The written description requirement for a claimed genus may be satisfied through sufficient description of a representative number of species by actual reduction to practice (see i)(A) above), reduction to drawings (see i)(B) above), or by disclosure of relevant, identifying characteristics, i.e., structure or other physical and/or chemical properties, by functional characteristics coupled with a known or disclosed correlation between function and structure, or by a combination of such identifying characteristics, sufficient to show the inventor was in possession of the claimed genus (see i)(C) above). See Eli Lilly, 119 F.3d at 1568, 43 USPQ2d at 1406. See Juno Therapeutics, Inc. v. Kite Pharma, Inc., 10 F.4th 1330, 1337, 2021 USPQ2d 893 (Fed. Cir. 2021) ( "[T]he written description must lead a person of ordinary skill in the art to understand that the inventor possessed the entire scope of the claimed invention. Ariad, 598 F.3d at 1353–54 ('[T]he purpose of the written description requirement is to ensure that the scope of the right to exclude, as set forth in the claims, does not overreach the scope of the inventor's contribution to the field of art as described in the patent specification.' (internal quotation marks omitted).") (Emphasis added) Attention is also directed to the decision of University of California v. Eli Lilly and Co. (CA FC, July 1997) 43 USPQ2d 1398 wherein is stated: In claims involving chemical materials, generic formulas usually indicate with specificity what the generic claims encompass. One skilled in the art can distinguish such a formula from others and can identify many of the species that the claims encompass. Accordingly, such a formula is normally an adequate written description of the claimed genus. In claims to genetic material, however, a generic statement such as “vertebrate insulin cDNA” or “mammalian cDNA,” without more, is not an adequate written description of the genus because it does not distinguish the claimed genus from others, except by function. It does not specifically define any of the genes that fall within its definition. It does not define any structural features commonly possessed by members of the genus that distinguish them from others. One skilled in the art therefore cannot, as one can do with a fully described genus, visualize or recognize the identity of the members of the genus. A definition by function, as we have previously indicated, does not suffice to define the genus because it is only an indication of what the gene does, rather than what it is See Fiers, 984 F.2d at 1169-71, 25 USPQ2d at 1605-06 (discussing Amgen). It is only a definition of a useful result rather than a definition of what it achieves as a result. Many such genes may achieve that result. The description requirement of the patent statute requires a description of an invention, not an indication of a result that one might achieve if one made that invention. See In re Wilder, 736 F.2d 1516, 222 USPQ 369, 372-373 (Fed. Cir. 1984) (affirming rejection because the specification does “little more than outlin[e] goals appellants hope the claimed invention achieves and the problems the invention will hopefully ameliorate.”). Accordingly, naming a type of material generally known to exist, in the absence of knowledge as to what that material consists of, is not a description of that material. Thus, as we have previously held, a cDNA is not defined or described by the mere name cDNA,” even if accompanied by the name of the protein that it encodes, but requires a kind of specificity usually achieved by means of the recitation of the sequence of nucleotides that make up the cDNA. See Fiers, 984 F.2d at 1171, 25 USPQ2d at 1606. Acknowledgement is made of the fact that the claim 13 is to a method and not to a product. However, it is well settled that in order to satisfy the written description for a method, one must also disclose the molecules required to perform the method. In support of this position attention is directed to University of Rochester v. G.D. Searle & Co. 68 USPQ2D 1424 (W.D.N.Y. 2003) at 1433 (affirmed; University of Rochester v. G.D. Searle & Co. 69 USPQ2d 1886 (Fed. Cir. 2004)): Plaintiff also argues that the requirements for written descriptions of claims to chemical compounds are irrelevant to this case because the '850 patent does not claim a compound, but a method of treatment by targeting PGHS-2 activity over PGHS-1 activity. Virtually any compound claim could be transformed into a method claim, however, simply by means of wording the claim in terms of a method of using the compound. With respect to the issue before the Court, then, this is little more than a semantic distinction without a difference. The claimed method depends upon finding a compound that selectively inhibits PGHS-2 activity. Without such a compound, it is impossible to practice the claimed method of treatment. It means little to “invent” a method if one does not have possession of a substance that is essential to practicing that method. Without that substance, the claimed invention is more theoretical than real; it is, as defendants argue, akin to “inven
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Prosecution Timeline

Feb 02, 2023
Application Filed
Jul 26, 2025
Non-Final Rejection — §101, §112
Dec 01, 2025
Response Filed
Apr 10, 2026
Final Rejection — §101, §112 (current)

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