Prosecution Insights
Last updated: April 19, 2026
Application No. 16/562,861

DIAGNOSTIC AND PROGNOSTIC LIQUID BIOPSY BIOMARKERS FOR ASTHMA

Non-Final OA §101§103
Filed
Sep 06, 2019
Examiner
SITTON, JEHANNE SOUAYA
Art Unit
1682
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
University of Sharjah
OA Round
3 (Non-Final)
53%
Grant Probability
Moderate
3-4
OA Rounds
3y 11m
To Grant
99%
With Interview

Examiner Intelligence

Grants 53% of resolved cases
53%
Career Allow Rate
348 granted / 660 resolved
-7.3% vs TC avg
Strong +48% interview lift
Without
With
+47.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 11m
Avg Prosecution
51 currently pending
Career history
711
Total Applications
across all art units

Statute-Specific Performance

§101
24.7%
-15.3% vs TC avg
§103
22.6%
-17.4% vs TC avg
§102
14.5%
-25.5% vs TC avg
§112
29.2%
-10.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 660 resolved cases

Office Action

§101 §103
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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 10/10/2025 has been entered. Status of Claims Currently, claims 1, 16, and 20-30 are pending in the instant application. Claims 23-30 are newly added. Claim 16 is withdrawn from consideration as being drawn to a non elected invention and claims 20, 22, and 24-30 are withdrawn from consideration as being directed to non elected species (applicants elected CD44 in the response dated 12/23/2024). Claims 1, 21, and 23 are currently under examination. All the amendments and arguments have been thoroughly reviewed but are deemed insufficient to place this application in condition for allowance. The following rejections are either newly applied, as necessitated by amendment, or are reiterated. They constitute the complete set being presently applied to the instant Application. Response to Applicant's arguments follow. This action is NON-FINAL. The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. Any rejection not reiterated is hereby withdrawn in view of the amendments to the claims. Claim Rejections - 35 USC § 101 Claims 1, 21, and 23 are rejected under 35 U.S.C. 101 because the claimed invention is directed to a natural correlation/law of nature and an abstract idea without significantly more. This judicial exception is not integrated into a practical application and the claim(s) does/do not include additional elements that are sufficient to amount to significantly more than the judicial exception for the reasons set forth below. 35 U.S.C. § 101 requires that to be patent-eligible, an invention (1) must be directed to one of the four statutory categories, and (2) must not be wholly directed to subject matter encompassing a judicially recognized exception. M.P.E.P. § 2106. Regarding judicial exceptions, “[p]henomena of nature, though just discovered, mental processes, and abstract intellectual concepts are not patentable, as they are the basic tools of scientific and technological work.” Gottschalk v. Benson, 409 U.S. 63, 67 (1972); see also M.P.E.P. § 2106. The unpatentability of abstract ideas was confirmed by the U.S. Supreme court in Bilski v. Kappos, 561 U.S. 593, 601 (June 28, 2010) and Alice Corp. Pty. Ltd. v. CLS Bank Int’l, 134 S. Ct. 2347, 2354 (2014). See also Myriad v Ambry, CAFC 2014-1361, -1366, December 17, 2014. The unpatentability of laws of nature was confirmed by the U.S. Supreme Court in Mayo Collaborative Services v. Prometheus Laboratories, Inc., 566 U.S. 66, 71 (2012). “[L]aws of nature, natural phenomena, and abstract ideas” are not patentable. Dia-mond v. Diehr, 450 U. S. 175, 185 (1981); see also Bilski v. Kappos, 561 U. S. at 601 (2010). Claims Analysis: As set forth in MPEP 2106, the claims have been analyzed to determine whether they are directed to one of the four statutory categories (STEP 1). The instant claims are directed to methods and therefore are directed to one of the four statutory categories of invention. The claims are then analyzed to determine if they recite a judicial exception (JE) (STEP 2A, prong 1) [Mayo Collaborative Services v. Prometheus Labs., Inc., 132 S. Ct. 1289, 1293 (2012), Alice Corp. Pry. Ltd. v. CLS Bank Int'l, 134 S. Ct. 2347 (2014)]. The claimed invention recites a method of characterizing an asthma status of an a subject by assessing RNA transcription levels of at least one gene in in the claim, and particularly CD44. However, this is a natural correlation between expression levels of the recited genes and asthma status, which is a natural correlation. With regard to the natural correlation, as in Mayo, the relationship is itself a natural process that exists apart from any human action. The claimed invention also recites steps such as “assessing RNA levels”, “characterizing an asthma status” which is “based on a differential expression”, which are directed to abstract ideas because they can occur entirely within the mind. These elements encompass reading a report, comparing expression levels, and drawing conclusions. It is therefore determined that the claims are directed to judicial exceptions. The claims are then analyzed to determine whether they recite an element or step that integrates the JE into a practical application (STEP 2A, prong 2) [Vanda Pharmaceuticals Inc., v. West-Ward Pharmaceuticals, 887 F.3d 1117 (Fed. Cir. 2018)]. The claims recite steps of assessing levels of transcription, however this does not integrate the JE into a practical application because it is a mere data gathering step to use the correlation and does not add a meaningful limitation to the method. Although the claims have been amended to recite administering a treatment selected from a steroid inhaler, a targeted biological agent, and a bronchoscopic investigation, the recitation of “a targeted biological agent” is generally recited, and as such, this element is merely a generalized “treat” limitation with no particularity that integrates the judicial exception into a practical application. The Supreme Court does acknowledge that it is possible to transform an unpatentable law of nature, but one must do more than simply state the law of nature while adding the words "apply it.” CLS BankInt’l, 134 S.Ct. at 2358; Prometheus, 132 S. Cl, at 1294. Additionally, the recitation of a “bronchoscopic investigation” is not directed to administration of any particular agent and is itself a data gathering step, which does not integrate the judicial exceptions into a practical application. In the absence of steps or elements that integrate the JE into a practical application, the additional elements/steps are considered to determine whether they add significantly more to the JE either individually or as an ordered combination, to “’transform the nature of the claim’ into a patent eligible application” [Mayo Collaborative Services v. Prometheus Labs., Inc., 132 S. Ct. 1289, 1293 (2012), Alice Corp. Pry. Ltd. v. CLS Bank Int'l, 134 S. Ct. 2347 (2014)] (STEP 2B). In the instant situation, the step of providing a sample is considered insignificant post solution activity. The step of assessing mRNA levels are generally recited and do not provide any particular reagents that might be considered elements that transform the nature of the claims into a patent eligible application because no specific elements/steps are recited. This step is not only a mere data gathering step, but the general recitation of detection of known nucleic acids is well understood, routine, and conventional activity (See MPEP 2106.05(d)(II)). Applicant is reminded that in Mayo, the Court found that “[i]f a law of nature is not patentable, then neither is a process reciting a law of nature, unless that process has additional features that provide practical assurance that the process is more than a drafting effort designed to monopolize the law of nature itself." Further "conventional or obvious" "[pre]solution activity" is normally not sufficient to transform an unpatentable law of nature into a patent-eligible application of such a law”. Flook, 437 U. S., at 590; see also Bilski, 561 U. S., at ___ (slip op., at 14) (“[T]he prohibition against patenting abstract ideas ‘cannot be circumvented by’ . . . adding ‘insignificant post-solution activity’” (quoting Diehr, supra, at 191–192)). The Court also summarized their holding by stating “[t]o put the matter more succinctly, the claims inform a relevant audience about certain laws of nature; any additional steps consist of well understood, routine, conventional activity already engaged in by the scientific community; and those steps, when viewed as a whole, add nothing significant beyond the sum of their parts taken separately.” Therefore these limitations/steps do not “‘transform the nature of the claim’ into a patent-eligible application.’” Alice, 134 S. Ct. at 2355 (quoting Mayo, 132 S. Ct. at 1297). When viewed as an ordered combination, the claimed limitations are directed to nothing more than the determination that a natural correlation/phenomena exists. Any additional element consists of using well understood, routine and conventional activity, and those steps, when viewed as a whole, add nothing significant beyond the sum of their parts taken separately. Accordingly, it is determined that the instant claims are not directed to patent eligible subject matter. Response to Arguments The response traverses. The arguments have been thoroughly and carefully considered but are not found persuasive for the reasons made in the rejection above. Arguments directed to withdrawn claims are not persuasive because they are directed to non elected species. The rejection is maintained. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claims 1, 21, and 23 are rejected under 35 U.S.C. 103 as being unpatentable over Chen (Chen et al; Epigenomics, 11:2, 115-131, DOI:10/2217/epi-2018-0132). Chen teaches assessing levels of mRNA expression in blood samples obtained from patients with asthma (see abstract, whole document, and pages 116-117). Chen teaches that CD44 expression was elevated in patients with severe asthma vs asthma patients, and normal controls. The term “mild asthma” is not defined by the specification or the claims, accordingly, the patients with “asthma” are taken to be encompassed by the instantly recited claims. Although Chen does teach administering inhaled corticosteroids to the patients, Chen does teach that severe asthma requires high dose inhaled corticosteroids (see abstract). Therefore, it would have been prima facie obvious to the ordinary artisan prior to the effective filing date to have administering inhaled corticosteroids to the patients taught by Chen because Chen teaches that such treatment is necessary. Conclusion No claims are allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to examiner Jehanne Sitton whose telephone number is (571) 272-0752. The examiner is a hoteling examiner and can normally be reached Mondays-Fridays from 8:00 AM to 2:00 PM Eastern Time Zone. 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, Winston Shen, can be reached on (571) 272-3157. The fax phone number for 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. /JEHANNE S SITTON/Primary Examiner, Art Unit 1682
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Prosecution Timeline

Sep 06, 2019
Application Filed
Feb 06, 2024
Non-Final Rejection — §101, §103
Aug 09, 2024
Response Filed
Apr 05, 2025
Final Rejection — §101, §103
Oct 10, 2025
Request for Continued Examination
Oct 15, 2025
Response after Non-Final Action
Mar 21, 2026
Non-Final Rejection — §101, §103 (current)

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
53%
Grant Probability
99%
With Interview (+47.6%)
3y 11m
Median Time to Grant
High
PTA Risk
Based on 660 resolved cases by this examiner. Grant probability derived from career allow rate.

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