Prosecution Insights
Last updated: September 17, 2026
Application No. 18/577,588

IL1RA DERIVED PEPTIDES FOR TREATMENT OF DIABETIC NEPHROPATHY

Non-Final OA §101§102§112§DP
Filed
Jan 08, 2024
Priority
Jul 13, 2021 — nonprovisional of PCTEP2021069450
Examiner
COFFA, SERGIO
Art Unit
Tech Center
Assignee
Serodus Aps
OA Round
1 (Non-Final)
61%
Grant Probability
Moderate
1-2
OA Rounds
2m
Est. Remaining
94%
With Interview

Examiner Intelligence

Grants 61% of resolved cases
61%
Career Allowance Rate
456 granted / 747 resolved
+1.0% vs TC avg
Strong +33% interview lift
Without
With
+32.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
76 currently pending
Career history
799
Total Applications
across all art units

Statute-Specific Performance

§101
3.7%
-36.3% vs TC avg
§103
34.4%
-5.6% vs TC avg
§102
16.9%
-23.1% vs TC avg
§112
26.7%
-13.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 747 resolved cases

Office Action

§101 §102 §112 §DP
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 . DETAILED ACTION Election/Restrictions Applicant’s election without traverse of the peptide SER140 (i.e. a dendrimer of 4 monomeric peptides SGRKSSKMQA (SEQ ID NO: 1) and coupled to a lysine backbone) in the reply filed on 7/16/2026 is acknowledged. Status of the Claims Claims 22-26 are pending in this application. Claim 24 is withdrawn from consideration as being drawn to a non-elected species. Claims 22-23 and 25-26 are presently under consideration as being drawn to the elected species. Claim Rejections - 35 USC § 101 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. Claims 22-26 are rejected under 35 U.S.C. 101 because the claimed invention is directed to non-statutory subject matter. The claim(s) does/do not fall within at least one of the four categories of patent eligible subject matter because the claims recite a use without any active, positive steps delimiting how this use is actually practiced (see MPEP 2173.05(q)). Claim Rejections - 35 USC § 112 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. Claims 22-26 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. Claims 22-26 recite a use without any active, positive steps delimiting how this use is actually practiced (see MPEP 2173.05(q)). Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claims 22-23 and 25-26 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Berezin et al. (WO 2012/122985). With respect to claims 22-23, Berezin et al. teach a multimeric compound comprising two or more peptides consisting of SEQ ID NO: 1 (claims 1-2 and 30). It is noted that SEQ ID NO: 1 corresponds to instantly claimed SEQ ID NO: 1. Furthermore, it is noted that “[d]uring examination, statements in the preamble reciting the purpose or intended use of the claimed invention must be evaluated to determine whether the recited purpose or intended use results in a structural difference (or, in the case of process claims, manipulative difference) between the claimed invention and the prior art. If so, the recitation serves to limit the claim” (MPEP 2111.02). In the instant case, the limitation “for use in the treatment of diabetic nephropathy" does not appear to add any further structural differences that would distinguish the instant invention with regards to the invention of Berezin et al. Thus, Berezin et al. is deemed to anticipate these claims. With respect to claim 25, Berezin et al. teach that the compound is a tetrameric dendrimer (claim 37). With respect to claim 26, Berezin et al. teach that the tetrameric dendrimer is coupled to a lysine backbone (page 25, lines 32-35). Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 22-23 and 25-26 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-20 of U.S. Patent No. 9359405. Although the claims at issue are not identical, they are not patentably distinct from each other because they relate to the same compound. With respect to claims 22-23, ‘405 teaches a multimeric compound comprising two or more peptides, wherein each of said two or more peptides consists of 10 to 14 consecutive amino acid residues derived from IL-1 receptor antagonist protein (IL1RA), each peptide consisting of: the amino acid sequence of SEQ ID NO: 1 (claim 11). It is noted that SEQ ID NO: 1 corresponds to instantly claimed SEQ ID NO: 1. Furthermore, it is noted that “[d]uring examination, statements in the preamble reciting the purpose or intended use of the claimed invention must be evaluated to determine whether the recited purpose or intended use results in a structural difference (or, in the case of process claims, manipulative difference) between the claimed invention and the prior art. If so, the recitation serves to limit the claim” (MPEP 2111.02). In the instant case, the limitation “for use in the treatment of diabetic nephropathy" does not appear to add any further structural differences that would distinguish the instant invention with regards to the invention of ‘405. Thus, ‘405 is deemed to anticipate these claims. With respect to claim 25, ‘405 teaches that the compound is a tetrameric dendrimer (claim 18). With respect to claim 26, Berezin et al. teach that the tetrameric dendrimer is coupled to a lysine backbone (claim 20). 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

Jan 08, 2024
Application Filed
Aug 12, 2026
Non-Final Rejection mailed — §101, §102, §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

1-2
Expected OA Rounds
61%
Grant Probability
94%
With Interview (+32.7%)
2y 11m (~2m remaining)
Median Time to Grant
Low
PTA Risk
Based on 747 resolved cases by this examiner. Grant probability derived from career allowance rate.

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