Prosecution Insights
Last updated: July 17, 2026
Application No. 18/554,737

ENGINEERING PEPTIDES FOR A A VB6 INTEGRIN BINDING AND RELATED METHODS OF USE AND SYNTHESIS

Final Rejection §102§112
Filed
Oct 10, 2023
Priority
Apr 12, 2021 — provisional 63/173,964 +1 more
Examiner
COFFA, SERGIO
Art Unit
1658
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Seattle Children's Hospital (dba Seattle Children's Research Institute)
OA Round
2 (Final)
61%
Grant Probability
Moderate
3-4
OA Rounds
1m
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

§102 §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 . DETAILED ACTION Claim Status Claims 1-6, 8-9, 11-13, 15-17, 19-21, 24, 30 and 47 are pending. Claim 47 has been added. Claims 1-3, 11, 15, 17, 19, 24 and 30 have been amended. Claims 1-6, 8-9, 11-13, 15-17, 19-21, 24, 30 and 47 are presently under consideration. Claim Objections Claims 2-4, 30 and 47 are objected to because of the following informalities: Claim 2 should be amended to recite “The synthetic peptide of claim 1 comprising X1X2VX3NLRGDLQVLX4QKVCX5TX6 (SEQ ID NO:20), X6 is a lysine, or D-lysine”. Claim 3 should be amended to recite “The synthetic peptide of claim 2 comprising X1X2VX3NLRGDLQVLX4QKVCX5TX6X7 (SEQ ID NO:20), 7 is D-alanine”. Claim 30 should be amended to recite “…..or citrulline, X6 is a lysine…”. Claims 4 and 47 depend upon objected claims (i.e. claims 3 and 30, respectively), thus are also objected. Appropriate correction is required. Claim Rejections - 35 USC § 112 The rejection of claim 30 under 35 USC 112(a) is withdrawn in view of the amendments to the claims. The rejection of claims 1-9, 11-13, 15-17, 19-21 and 30 under 35 USC 112(b) is withdrawn in view of the amendments to the claims. 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. This is a new rejection. Claims 11-13, 15-17 and 19-21 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 11 is drawn to the synthetic peptide of claim 6, wherein the synthetic peptide comprises SEQ ID NO: 19. The variable X6 is not defined, thus rendering the claim indefinite. Claims 12-13, which depend from claim 11, are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as these claims incorporate by dependency the indefiniteness of claim 11. Claim 15 is drawn to the synthetic peptide of claim 6, wherein the synthetic peptide comprises SEQ ID NO: 20. The variables X6 and X7 are not defined, thus rendering the claim indefinite. Claims 16-17, which depend from claim 15, are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as these claims incorporate by dependency the indefiniteness of claim 11. Claim 19 is drawn to the synthetic peptide of claim 5, wherein the synthetic peptide comprises SEQ ID NO: 20. The variables X6 and X7 are not defined, thus rendering the claim indefinite. Claims 20-21, which depend from claim 19, are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as these claims incorporate by dependency the indefiniteness of claim 11. 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. This is a new rejection. Claim 9 is 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. Claim 9 is drawn to the synthetic peptide of claim 8, wherein X5 is D-arginine or citrulline. It is noted that in claim 8, X5 is defined as a non-natural amino acid. Therefore, since X5 can be an arginine, D-arginine or citrulline (see claim 1), and the only 2 non-natural amino acids are D-arginine and citrulline, claim 9 fails to further limit the subject matter of claim 8. 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 § 102 The rejection of claims 1-3, 24 and 30 under 35 U.S.C. 102(a)(1) as being anticipated by Howard et al. is withdrawn in view of the amendments to the claims. Allowable Subject Matter Claims 1, 5-6, 8 and 24 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

Oct 10, 2023
Application Filed
Mar 04, 2026
Non-Final Rejection mailed — §102, §112
Jun 04, 2026
Response Filed
Jun 17, 2026
Final Rejection mailed — §102, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12678541
CURABLE FIBRINOGEN AND USES THEREOF
3y 9m to grant Granted Jul 14, 2026
Patent 12653866
URI Agonist/Vasodilator
2y 6m to grant Granted Jun 16, 2026
Patent 12648571
COMPOSITIONS INCLUDING ANTIMICROBIAL POLYMER- PEPTIDE CONJUGATES AND USES THEREOF
3y 10m to grant Granted Jun 09, 2026
Patent 12643935
PD-L1 BINDING PEPTIDES
3y 7m to grant Granted Jun 02, 2026
Patent 12630587
A NEW ANTIBIOTIC SELECTIVELY KILLS GRAM-NEGATIVE PATHOGENS
4y 0m to grant Granted May 19, 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

3-4
Expected OA Rounds
61%
Grant Probability
94%
With Interview (+33.1%)
2y 11m (~1m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 734 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