Prosecution Insights
Last updated: July 17, 2026
Application No. 17/781,438

NEW MULTI-FUNCTIONAL OLIGOPEPTIDES

Final Rejection §112
Filed
Jun 01, 2022
Priority
Dec 02, 2019 — CN PCT/CN2019/122391 +2 more
Examiner
COFFA, SERGIO
Art Unit
1658
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Enlitisa (Shanghai) Pharmaceutical Co. Ltd.
OA Round
2 (Final)
61%
Grant Probability
Moderate
3-4
OA Rounds
0m
Est. Remaining
94%
With Interview

Examiner Intelligence

Grants 61% of resolved cases
61%
Career Allowance Rate
449 granted / 734 resolved
+1.2% vs TC avg
Strong +33% interview lift
Without
With
+33.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
69 currently pending
Career history
789
Total Applications
across all art units

Statute-Specific Performance

§101
0.9%
-39.1% vs TC avg
§103
47.4%
+7.4% vs TC avg
§102
12.3%
-27.7% vs TC avg
§112
9.5%
-30.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 734 resolved cases

Office Action

§112
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 . Claim Status Claims 1-14, 16, 18, 20-24, 26, 28, 31-36, 41-47 and 49 are pending. Claim 1 has been amended. Claims 1-14, 16, 18, 20-24, 26, 28 and 31-36 are allowable. Claims 41-47 and 49, previously withdrawn from consideration as a result of a restriction requirement, require all the limitations of an allowable claim. Pursuant to the procedures set forth in MPEP § 821.04(a), the restriction requirement between inventions I-III, as set forth in the Office action mailed on 5/21/2025, is hereby withdrawn and claims 41-47 and 49 are hereby rejoined and fully examined for patentability under 37 CFR 1.104. In view of the withdrawal of the restriction requirement, applicant(s) are advised that if any claim presented in a divisional application is anticipated by, or includes all the limitations of, a claim that is allowable in the present application, such claim may be subject to provisional statutory and/or nonstatutory double patenting rejections over the claims of the instant application. Once the restriction requirement is withdrawn, the provisions of 35 U.S.C. 121 are no longer applicable. See In re Ziegler, 443 F.2d 1211, 1215, 170 USPQ 129, 131-32 (CCPA 1971). See also MPEP § 804.01. 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. This is a new rejection. Claims 41-47 and 49 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 MPEP states: “There are many factors to be considered when determining whether there is sufficient evidence to support a determination that a disclosure does not satisfy the enablement requirement and whether any necessary experimentation is “undue.” These factors include, but are not limited to: (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.” (A) The breadth of the claims; and (B) The nature of the invention; The claims are drawn to a method of treatment of inflammation, an inflammatory disorder, and/or of a disorder characterised by inflammation, which method comprises the administration of a compound as defined in Claim 1 to a patient in need of such treatment. (C) The state of the prior art; The state of the prior indicates that many inflammatory disorders and disorders characterized by inflammation are untreatable (few examples are provided below). Costello et al. (Pancreat Disord Ther; Suppl 4; doi:10.4172/2165-7092.S4-002) teaches that pancreatic cancer is untreatable (abstract). Hersh et al. (Clinical Infectious Diseases 2012;54(11):1677-8) teaches that there are a number of patients with untreatable infections (page 1677, mid column, lines 27-33). Mullin (Fierce Biotech, 2014) teaches that ebola cannot be treated (page 1, lines 1-2). (D) The level of one of ordinary skill; The skill of those skilled in the art is high. (E) The level of predictability in the art; Considering that not all inflammatory disorders and disorders characterized by inflammation can be treated, the unpredictability of treatment of each and every inflammatory disorder and each and every disorder characterized by inflammation is very high. (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. The specification does not provide any examples with respect to the treatment of any inflammatory disorder or disorder characterized by inflammation with the claimed conjugate. The MPEP (2164.02) states that " The specification need not contain an example if the invention is otherwise disclosed in such manner that one skilled in the art will be able to practice it without an undue amount of experimentation. In re Borkowski, 422 F.2d 904, 908, 164 USPQ 642, 645 (CCPA 1970).” The MPEP further states that PNG media_image1.png 18 19 media_image1.png Greyscale “Lack of a working example, however, is a factor to be considered, especially in a case involving an unpredictable and undeveloped art.” In the instant application, the specification does not provide any guidance to allow for the treatment of any inflammatory disorder or disorder characterized by inflammation with the claimed conjugate. Working examples are necessary since the art has indicated unpredictability of treatment of such diseases is very high. Considering the state of the art as discussed above and the high unpredictability and the lack of guidance provided in the specification, one of ordinary skill in the art would be burdened with undue experimentation to use the invention as claimed. Allowable Subject Matter Claim 1-14, 16, 18, 20-24, 26, 28 and 31-36 are allowed. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to SERGIO COFFA whose telephone number is (571)270-3022. The examiner can normally be reached M-F: 6AM-4PM. 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, MELISSA FISHER can be reached at 571-270-7430. 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. /SERGIO COFFA Ph.D./ Primary Examiner Art Unit 1658 /SERGIO COFFA/Primary Examiner, Art Unit 1658
Read full office action

Prosecution Timeline

Jun 01, 2022
Application Filed
Oct 22, 2025
Non-Final Rejection mailed — §112
Apr 21, 2026
Response Filed
May 06, 2026
Final Rejection mailed — §112 (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
61%
Grant Probability
94%
With Interview (+33.1%)
2y 11m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 734 resolved cases by this examiner. Grant probability derived from career allowance rate.

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