Prosecution Insights
Last updated: July 17, 2026
Application No. 18/508,102

COMPOUNDS AND COMPOSITIONS AS EIF4E INHIBITORS AND THE USES THEREOF

Non-Final OA §112
Filed
Nov 13, 2023
Priority
Nov 10, 2022 — provisional 63/424,463
Examiner
COLEMAN, BRENDA LIBBY
Art Unit
1624
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Ribometrix Inc.
OA Round
1 (Non-Final)
75%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
90%
With Interview

Examiner Intelligence

Grants 75% — above average
75%
Career Allowance Rate
1217 granted / 1629 resolved
+14.7% vs TC avg
Strong +16% interview lift
Without
With
+15.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
46 currently pending
Career history
1664
Total Applications
across all art units

Statute-Specific Performance

§101
2.7%
-37.3% vs TC avg
§103
9.8%
-30.2% vs TC avg
§102
12.5%
-27.5% vs TC avg
§112
49.8%
+9.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1629 resolved cases

Office Action

§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 . Claims 1-4, 6-8, 13, 14, 17, 22, 27, 30, 32-34, 36-38 and 42 are pending in this application. Priority Applicant’s claim for the benefit of a prior-filed application under 35 U.S.C. 119(e) or under 35 U.S.C. 120, 121, 365(c), or 386(c) is acknowledged. Applicant has not complied with one or more conditions for receiving the benefit of an earlier filing date under 35 U.S.C. 119(e) as follows: The later-filed application must be an application for a patent for an invention which is also disclosed in the prior application (the parent or original nonprovisional application or provisional application). The disclosure of the invention in the parent application and in the later-filed application must be sufficient to comply with the requirements of 35 U.S.C. 112(a) or the first paragraph of pre-AIA 35 U.S.C. 112, except for the best mode requirement. See Transco Products, Inc. v. Performance Contracting, Inc., 38 F.3d 551, 32 USPQ2d 1077 (Fed. Cir. 1994). The disclosure of the prior-filed application, Application No. 63/424,463, fails to provide adequate support or enablement in the manner provided by 35 U.S.C. 112(a) or pre-AIA 35 U.S.C. 112, first paragraph for one or more claims of this application. Claims 1-4, 6-8, 13, 14, 17, 22, 27, 30, 32-34, 36-38 and 42 are not supported by the disclosure of the prior filed application as set forth in Formula (I) where Ring A is substituted with R1’ or RA1. Claim Rejections - 35 USC § 112 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. Claims1-4, 6-8, 13, 14, 17, 22, 27, 30, 32-34, 37, 38 and 42 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the enablement requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to enable one skilled in the art to which it pertains, or with which it is most nearly connected, to make and/or use the invention. The nature of the instant invention has claims, which embrace substituted 5,6,7,8-tetrahydroquinazolin-4-one compounds. HOW TO MAKE: Claims 1-4, 6-8, 13, 14, 17, 22, 27, 30, 32-34, 36 and 37 are compounds of the Formula I” where Ring A is defined by the variables X, m and m’ in the such that substituted 5,6,7,8-tetrahydroquinazolin-4-one are the only rings for A exemplified except for one. In addition to the single species where A forms with the pyrimidine ring, i.e., 5,6-dihydro-3H-pyrano[2,3-d]pyrimidin-4-one and the 633 species where Ring A forms with the pyrimidine ring is substituted 5,6,7,8-tetrahydroquinazolin-4-one where are the starting materials for Ring A when Ring A can also be 4-8 membered in size in addition to the definition of X which is -O- or -C(RX)2-. There is no teaching of Ring A which is other than 5,6,7,8-tetrahydroquinazolin-4-one or 5,6-dihydro-3H-pyrano[2,3-d]pyrimidin-4-one along with the various variables attached to Ring A, i.e., R1’, R1, RA1, RA, RB, m and m’ as well as the variables attached to the nitrogen atom of the pyrimidine ring, L, q, Ring C, Ring D, RC1, RC2, r, R2, RD and s in the compounds of Formula (I”) which are not mentioned as to how to prepare the vast array of possible compounds represented by the Formula (I”). The degree and nature of the definitions of X, R1’, R1, RA1, RA, RB, m and m’ in addition to the other variables is such that the scope of the invention is not apparent. The nature of the invention in the instant case, has claims which embrace a compound of the Formula where I” is a 5,6,7,8-tetrahydroquinazolin-4-one ring system. While there are 634 compounds with 633 of them being 5,6,7,8-tetrahydroquinazolin-4-one ring system as a core and only one contains the 5,6-dihydro-3H-pyrano[2,3-d]pyrimidin-4-one ring system core. In view of the lack of direction provided in the specification regarding starting materials, the lack of working examples, and the general unpredictability of chemical reactions, it would take an undue amount of experimentation for one skilled in the art to make the claimed compounds and therefore practice the invention. To be enabling, the specification of a patent must teach those skilled in the art how to make and use the full scope of the claimed invention without undue experimentation. The applicants are not entitled to preempt the efforts of others. The test for determining compliance with 35 U.S.C. § 112 is whether the applicants have clearly defined “their” invention not what may be discovered by future research. HOW TO USE: Claims 38 and 42 are drawn to the method of inhibiting a protein and a method of treating or preventing a disease or disorder, which is associated with eukaryotic initiation factor 4E (eIF4E) activity. Any evidence presented must be commensurate in scope with the claims and must clearly demonstrate the effectiveness of the claimed compounds. The specification does not enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to use the invention commensurate in scope with these claims. The scope of claims 38 and 42 includes diseases and/or conditions not even known at this time, which may be associated with eukaryotic initiation factor 4E (eIF4E) activity. While the treatment of breast cancer has been linked with eukaryotic initiation factor 4E (eIF4E) the art does not recognize use of such inhibitors as broad-based drugs for treating all disorders instantly embraced. The treatment of cancer generally cannot possibly be considered enabled. As a general rule, enablement must be commensurate with the scope of claim language. MPEP 2164.08 states, “The Federal Circuit has repeatedly held that “the specification must teach those skilled in the art how to make and use the full scope of the claimed invention without undue experimentation.” In re Wright, 999 F.2d 1557, 1561, 27 USPQ2d 1510, 1513 (Fed. Cir. 1993)” (emphasis added). The “make and use the full scope of the invention without undue experimentation” language was repeated in 2005 in Warner-Lambert Co. v. Teva Pharmaceuticals USA Inc., 75 USPQ2d 1865, and Scripps Research Institute v. Nemerson, 78 USPQ2d 1019 asserts: “A lack of enablement for the full scope of a claim, however, is a legitimate rejection.” The principle was explicitly affirmed most recently in Liebel-Flarsheim Co. v. Medrad, Inc. 481 F.3d 1371, 82 USPQ2d 1113; Auto. Tech. Int’l, Inc. v. BMW of N. Am., Inc., 501 F.3d 1274, 84 USPQ2d 1108 (Fed. Cir. 2007), Monsanto Co. v. Syngenta Seeds, Inc., 503 F.3d 1352, 84 U.S.P.Q.2d 1705 (Fed. Cir. 2007), and Sitrick v. Dreamworks, LLC, 516 F.3d 993, 85 USPQ2d 1826 (Fed. Cir. 2008). By way of background, four cases are of particular relevance to the question of enablement of a method of treating cancers broadly or even generally: In In re Buting, 57 CCPA 777, 418 F.2d 540, 163 USPQ 689, the claim was drawn to “The method of treating a malignant condition selected from the group consisting of leukemias, sarcomas, adenocarcinomas, lymphosarcomas, melanomas, myelomas, and ascitic tumors” using a small genus of compounds. The Court decided that human testing “limited to one compound and two types of cancer” was not “commensurate with the broad scope of utility asserted and claimed”. . In Ex parte Jovanovics, 211 USPQ 907 the claims were drawn to “the treatment of certain specified cancers in humans” by the use of a genus of exactly two compounds, the N-formyl or N-desmethyl derivative of leurosine. Applicants submitted “affidavits, publications and data” for one of the compounds, and a dependent claim drawn to the use of that species was allowed. For the other, no data was presented, applicants said only that the other derivative would be expected to be less effective; claims to the genus were refused. In Ex parte Busse, et al., 1 USPQ2d 1908, claims were drawn to “A therapeutic method for reducing metastasis and neoplastic growth in a mammal” using a single species. The decision notes that such utility “is no longer considered to be “incredible”, but that “the utility in question is sufficiently unusual to justify the examiner's requirement for substantiating evidence. Note also that there is also a dependent claim 5 which specified “wherein metastasis and neoplastic growth is adenocarcinoma, squamous cell carcinoma, melanoma, cell small lung or glioma.” The decision notes that “even within the specific group recited in claim 5 some of the individual terms used actually encompass a relatively broad class of specific types of cancer, which specific types are known to respond quite differently to various modes of therapy.” In Ex parte Stevens, 16 USPQ2d 1379 a claim to “A method for therapeutic or prophylactic treatment of cancer in mammalian hosts” was refused because there was “no actual evidence of the effectiveness of the claimed composition and process in achieving that utility.” Pursuant to In re Wands, 858 F.2d 731, 737, 8 USPQ2d 1400, 1404 (Fed. Cir. 1988), one considers the following factors to determine whether undue experimentation is required: (A) The breadth of the claims; (B) The nature of the invention; (C) The state of the prior art; (D) The level of one of ordinary skill; (E) The level of predictability in the art; (F) The amount of direction provided by the inventor; (G) The existence of working examples; and (H) The quantity of experimentation needed to make or use the invention based on the content of the disclosure. Some experimentation is not fatal; the issue is whether the amount of experimentation is “undue”; see In re Vaeck, 20 USPQ2d 1438, 1444. Cancer is not a single disease, or cluster of closely related disorders. There are hundreds of cancers, which have in common only some loss of controlled cell growth. Cancers are highly heterogeneous at both the molecular and clinical level, something seen especially in, for example, the cancers of the breast, brain and salivary glands. They can occur in pretty much every part of the body. Here are some assorted categories: It is important to note that tumors can need to be treated quite differently even though they are tumors of the same organ. For example, the drugs used most often to treat Wilms tumor, the most common malignant tumor of the kidneys in children, are actinomycin D and vincristine. Such drugs are never used with clear cell renal carcinoma, which is treated, although without much success, with immunotherapy using the cytokines interleukin-2 and interferon-alpha. However, such immunotherapy has never been established as effective in non-clear cell RCC forms such as papillary renal cell carcinoma. Despite strenuous efforts over a period of decades, no chemotherapeutic agent has ever been found effective against this cancer. Cancers of the stomach can be lymphomas, GISTs, carcinoid tumors, carcinomas, or soft tissue sarcomas, and for a single agent to be effective against all or even most of these categories would be contrary to what is known in oncology. (7) The quantity of experimentation needed: Given the fact that, historically, the development of new cancers drugs has been difficult and time consuming, and especially in view of factors 1 and 4 and 6, the quantity of experimentation needed is expected to be great. MPEP 2164.01(a) states, “A conclusion of lack of enablement means that, based on the evidence regarding each of the above factors, the specification, at the time the application was filed, would not have taught one skilled in the art how to make and/or use the full scope of the claimed invention without undue experimentation. In re Wright, 999 F.2d 1557,1562, 27 USPQ2d 1510, 1513 (Fed. Cir. 1993).” That conclusion is clearly justified here. In view of the lack of direction provided in the specification regarding starting materials, the lack of working examples, and the general unpredictability of chemical reaction, it would take an undue amount of experimentation for one skilled in the art to make the claimed compounds and therefore practice the invention. To be enabling, the specification of a patent must teach those skilled in the art how to make and use the scope of the claimed invention without undue experimentation. The applicants are not entitled to preempt the efforts of others. The test for determining compliance with 35 U.S.C. § 112, is whether the applicants have clearly defined their invention. It is difficult to treat many of the disorders claimed herein. Instant claim language embraces disorders not only for treatment but the prevention, which is not remotely enabled. It is presumed in the prevention of the diseases and/or disorders claimed herein there is a way of identifying those people who may develop cancer, etc. There is no evidence of record, which would enable the skilled artisan in the identification of the people who have the potential of becoming afflicted with the disorders claimed herein. Where the utility is unusual or difficult to treat or speculative, the examiner has authority to require evidence that tests relied upon are reasonably predictive of in vivo efficacy by those skilled in the art. See In re Ruskin, 148 USPQ 221; Ex parte Jovanovics, 211 USPQ 907; MPEP 2164.05(a). Patent Protection is granted in return for an enabling disclosure of an invention, not for vague intimations of general ideas that may or may not be workable. Tossing out the mere germ of an idea does not constitute enabling disclosure. Genentech Inc. v. Novo Nordisk 42 USPQ2d 1001. As stated in the MPEP, 2164.08 ''[t]he Federal Circuit has repeatedly held that the specification must teach those skilled in the art how to make and use the full scope of the claimed invention without undue experimentation. ln re Wright, 999 F.2d 1557, 1561 27 USPQ2d 1510, 1513 (Fed. Cir. 1993). Nevertheless, not everything necessary to practice the invention need be disclosed. In fact, what is well known is best omitted. In re Buchner, 929 F.2d 660, 661, 18 USPQ2d 1331, 1332 (Fed. Cir. 1991). AII that is necessary is that one skilled in the art be able to practice the claimed invention, given the Ievel of knowledge and skill in the art. Further the scope of enablement must only bear a reasonable correlation to the scope of the claims. See, e.g., In re Fisher, 427 F.2d 833, 839,166 USPQ 18, 24 (CCPA 1970). As concerns the breadth of a claim relevant to enablement, the only relevant concern should be whether the scope of enablement provided to one skilled in the art by the disclosure is commensurate with the scope of protection sought by the claims. In re Moore, 439 F.2d 1232, 1236, 169 USPQ 236, 239 (CCPA 1971). See also Plant Genetic Sys., N.V. v. DeKalb Genetics Corp., 315 F.3d 1335, 1339, 65 USPQ2d 1452, 1455 (Fed. Cir. 2003) (alleged pioneer status of invention irrelevant to enablement determination.'' Claims 1-4, 6-8, 13, 14, 17, 22, 27, 30, 32-34, 36-38 and 42 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, because the specification, while being enabling for salt forms, does not reasonably provide enablement for solvates. The specification does not enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make the invention commensurate in scope with these claims. The claims are drawn to solvates. But the numerous examples presented all failed to produce a solvate. These cannot be simply willed into existence. As was stated in Morton International Inc. v. Cardinal Chemical Co., 28 USPQ2d 1190 “The specification purports to teach, with over fifty examples, the preparation of the claimed compounds with the required connectivity. Hence, applicants must show that solvates can be made, or limit the claims accordingly. Claims 1-4, 6-8, 13, 14, 17, 22, 27, 30, 32-34, 36-38 and 42 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the enablement requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to enable one skilled in the art to which it pertains, or with which it is most nearly connected, to make and/or use the invention. It is the Wands factors, which are used to evaluate the enablement question. In re Wands, 8 USPQ2d 1400 (Fed. Cir. 1988); Ex parte Forman, 230 USPQ 546. The factors include: 1) The nature of the invention, 2) the state of the prior art, 3) the predictability or lack thereof in the art, 4) the amount of direction or guidance present, 5) the presence or absence of working examples, 6) the breadth of the claims, and 7) the quantity of experimentation needed. The nature of the invention in the instant case, has claims which embrace compounds. The scope of “prodrug” is not adequately enabled. Applicants provide no guidance as how the compounds are made more active in vivo. The choice of a “prodrug” will vary from drug to drug. Therefore, more than minimal routine experimentation would be required to determine which prodrug will be suitable for the instant invention. The instant compounds of formula (I) wherein the prodrugs are not described in the disclosure in such a way the one of ordinary skill in the art would know how to prepare the various compounds suggested by claims 1-4, 6-8, 13, 14, 17, 22, 27, 30, 32-34 and 36. In view of the lack of direction provided in the specification regarding starting materials, the lack of working examples, and the general unpredictability of chemical reactions, it would take an undue amount of experimentation for one skilled in the art to make the claimed compounds and therefore practice the invention. Claim Objections Claim 36 is objected to as being of improper form. MPEP 2173.05(s) states, “Reference to Figures or Tables. Where possible, claims are to be complete in themselves. Incorporation by reference to a specific figure or table “is permitted only in exceptional circumstances where there is no practical way to define the invention in words …’ ” This condition is not met here, since it is practical to define the invention in words, simply by putting the structures into the claim. See Ex parte Fressola, 27 USPQ2d 1608, 1609. Any inquiry concerning this communication or earlier communications from the examiner should be directed to BRENDA L COLEMAN whose telephone number is (571)272-0665. The examiner can normally be reached Mon-Fri 10-6 (flex). Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Jeffrey H. Murray can be reached on 571-272-9023. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /BRENDA L COLEMAN/Primary Examiner, Art Unit 1624
Read full office action

Prosecution Timeline

Nov 13, 2023
Application Filed
May 05, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12679850
TYK2 INHIBITORS AND USES THEREOF
3y 4m to grant Granted Jul 14, 2026
Patent 12678443
MEDICAMENT FOR PREVENTING AND/OR TREATING DRY EYE
2y 2m to grant Granted Jul 14, 2026
Patent 12661343
COMPOSITIONS CONTAINING NICOTINAMIDE AND VITAMIN B6 AND METHODS OF USING SUCH COMPOSITIONS FOR PROMOTING MUSCLE GROWTH
3y 1m to grant Granted Jun 23, 2026
Patent 12655107
OXYNITIDINE DERIVATIVES USEFUL AS INHIBITORS OF TOPOISOMERASE IB (TOP1) AND TYROSYL-DNA PHOSPHODIESTERASE 1 (TDP1)
5y 4m to grant Granted Jun 16, 2026
Patent 12648986
PLD FOR USE IN COMBINATION IN THE TREATMENT OF CORONAVIRUS
3y 9m to grant Granted Jun 09, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

1-2
Expected OA Rounds
75%
Grant Probability
90%
With Interview (+15.5%)
2y 5m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1629 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month