Prosecution Insights
Last updated: April 19, 2026
Application No. 17/934,343

POLYPEPTIDES FOR USE IN SELF-ASSEMBLING PROTEIN NANOSTRUCTURES

Non-Final OA §DP
Filed
Sep 22, 2022
Examiner
FISCHER, JOSEPH
Art Unit
1658
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
UNIVERSITY OF WASHINGTON
OA Round
3 (Non-Final)
43%
Grant Probability
Moderate
3-4
OA Rounds
3y 4m
To Grant
89%
With Interview

Examiner Intelligence

Grants 43% of resolved cases
43%
Career Allow Rate
141 granted / 329 resolved
-17.1% vs TC avg
Strong +46% interview lift
Without
With
+45.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
43 currently pending
Career history
372
Total Applications
across all art units

Statute-Specific Performance

§101
5.4%
-34.6% vs TC avg
§103
32.0%
-8.0% vs TC avg
§102
15.5%
-24.5% vs TC avg
§112
31.4%
-8.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 329 resolved cases

Office Action

§DP
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and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114.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 3/4/25 has been entered. Priority The instant application, filed 09/22/2022 and having one RCE, is a Continuation of 16427493, filed 05/31/2019, now U.S. Patent # 11485759 16427493 is a Continuation of 15490351, filed 04/18/2017, now U.S. Patent # 10351603 15490351 is a Divisional of 14930792, filed 11/03/2015, now U.S. Patent # 9630994 14930792 Claims Priority from Provisional Application 62074167, filed 11/03/2014. Information Disclosure Statement The Examiner has considered the reference(s) provided in the 12/11/24, 7/16/25, and 7/23/25 Information Disclosure Statements, and provides a signed and dated copy of each herewith. Claim Status Claims 21-28 and 30-57 are pending. Claims 1-20, 29 and 58-60 are cancelled. Claims 21-28 and 30-57 are rejected. Claim Interpretation The claim limitations are given their broadest reasonable interpretation (BRI) consistent with the specification, MPEP 2111, and under the BRI, words of the claim must be given their plain meaning, unless such meaning is inconsistent with the specification, MPEP 2111.01. The specification, page 3, lines 9-10 states, “Each I53 material comprises 12 identical pentamers (dark grey) and 20 identical trimers (light grey),”. Claim 24, depending from claim 21 via claim 23, is directed to the nanostructure of claim 23, “wherein the trimeric components and the pentameric components form an I53 icosahedral architecture.” “I53” is interpreted to mean that each of the respective trimeric components and pentameric components are identical, each trimeric component has identical sequence to every other trimeric component, each pentameric component has identical sequence to every other pentameric component, as distinguished from the claim 21 and 23 nanostructures, which by claim differentiation could comprise different, non-identical sequences when comparing one or more of the trimeric components or pentameric components in those icosahedral protein nanostructures. The examiner acknowledges applicant’s 9/21/24 amendment of claim 24 following the above interpretation, albeit per Remarks of 9/21/24, page 7, without acquiescence to this claim construction. 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. Response to Arguments Applicant's arguments filed 1/14/25 have been fully considered but they are not persuasive. It is the examiner’s understanding of the MPEP that it proper to make and maintain the NSDP rejection that is set forth below. Claims 21-60 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1, 2, 6 and 7 of U.S. Patent No. 11192926. Although the claims at issue are not identical, they are not patentably distinct from each other because the reference patent claims are directed to administering to a subject in need thereof a nanostructure genera or subgenera from which the instant claims’ subgenera (or species) are at once envisaged, as explained in the table below: Instant claim(s) Relevant reference patent claim(s) Discussion/explanation 21 1, 2, 6 and 7 All sequences of instant claim 1 are set forth in these reference patent claims, as well as additional limitations regarding particular virus proteins’ inclusion in the structure, claimed combinations to form the nanostructure is reinforced in reference patent claims 2 and 6. AT 100% SEQUENCE IDENTITY OF THE FIRST AND SECOND POLYPEPTIDES THAT FORM THE ADMINISTERED NANOSTRUCTURES, ENCOMPASSED IN THE REFERENCE CLAIMS, THE IDENTITY AT THE PARTICULARLY RECITED INTERFACE AMINO ACID POSITIONS OF THE INSTANT CLAIMS ARE AT ONCE ENVISAGED AND NECESSARILY MET. THIS APPLIES ALSO TO ALL DEPENDENT CLAIMS SET FORTH BELOW. 22 1, 2, 6 and 7 As above, and 90% identity is at once envisaged from reference patent claims 1 and 2 at least 75% and narrower identities as a closer match to the listed sequences 23 1, 2, 6 and 7 As above, and 95% identity is at once envisaged from reference patent claims 1 and 2 at least 75% and narrower identities as a closer match to the listed sequences 24 1, 2, 6 and 7 This rejection is based on “I53” requiring 12 identical pentamers and 20 identical trimers, and this would have been obvious by selection of a single sequence for each from the listing in reference patent claim 1 or claim 6 at least because there is no indication in these claims to mix sequences for the first or the second polypeptides 25 1, 2, 6 and 7 This combination is specifically listed in reference patent claim 6 26 1, 2, 6 and 7 This combination is specifically listed in reference patent claim 6 27 1, 2, 6 and 7 This combination is specifically listed in reference patent claim 6 28 1, 2, 6 and 7 This combination is specifically listed in reference patent claim 6 30 1, 2, 6 and 7 This combination is specifically listed in reference patent claim 6 31 1, 2, 6 and 7 This combination is specifically listed in reference patent claim 6 32 1, 2, 6 and 7 This combination is specifically listed in reference patent claim 6 33 1, 2, 6 and 7 This combination is specifically listed in reference patent claim 6 34 1, 2, 6 and 7 This combination is specifically listed in reference patent claim 6 35 1, 2, 6 and 7 This combination is specifically listed in reference patent claim 6 36 1, 2, 6 and 7 This combination is specifically listed in reference patent claim 6 37 1, 2, 6 and 7 This combination is specifically listed in reference patent claim 6 38 1, 2, 6 and 7 This combination is specifically listed in reference patent claim 6 39 1, 2, 6 and 7 This combination is specifically listed in reference patent claim 6 40 1, 2, 6 and 7 This combination is specifically listed in reference patent claim 6 41 1, 2, 6 and 7 This combination is specifically listed in reference patent claim 6 42-49 1, 2, 6 and 7 As above for claim 21, and 95% identity is at once envisaged from reference patent claim’s at least 75% and narrower identities 50-57 1, 2, 6 and 7 As above for claim 21, and the exact sequence as set forth in instant claims 50-57 is at once envisaged from reference patent claims 1 and 6 that list these sequences Claims 21-60 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1, 3, 4, 25 and 26 of U.S. Patent No. 11732011. Although the claims at issue are not identical, they are not patentably distinct from each other because the reference patent claims are directed to a nanostructure genera or subgenera from which the instant claims’ subgenera (or species) are at once envisaged, as explained in the table below: Instant claim(s) Relevant reference patent claim(s) Discussion/explanation 21 1, 3, 4, 25 and 26 All sequences of instant claim 1 are set forth in these reference patent claims, directed to administering a nanostructure formed from these sequences, as well as additional limitations regarding particular virus proteins’ inclusion in the structure, the former is reinforced in reference patent claims 2 and 6. AT 100% SEQUENCE IDENTITY OF THE FIRST AND SECOND POLYPEPTIDES OF THE NANOSTRUCTURE, ENCOMPASSED IN THE REFERENCE CLAIMS, THE IDENTITY AT THE PARTICULARLY RECITED INTERFACE AMINO ACID POSITIONS OF THE INSTANT CLAIMS ARE AT ONCE ENVISAGED AND NECESSARILY MET. THIS APPLIES ALSO TO ALL DEPENDENT CLAIMS SET FORTH BELOW. 22 1, 3, 4, 25 and 26 As above, and 90% identity is at once envisaged from reference patent claims 1 and 3 at least 75% and narrower identities as a closer match to the listed sequences 23 1, 3, 4, 25 and 26 As above, and 95% identity is at once envisaged from reference patent claims 1 and 3 at least 75% and narrower identities as a closer match to the listed sequences 24 1, 3, 4, 25 and 26 This rejection is based on “I53” requiring 12 identical pentamers and 20 identical trimers, and this would have been obvious by selection of a single sequence for each from the listing in reference patent claim 1 or claim 3 at least because there is no indication in these claims to mix sequences for the first or the second polypeptides 25 1, 3, 4, 25 and 26 This combination is specifically listed in reference patent claim 6 26 1, 3, 4, 25 and 26 This combination is specifically listed in reference patent claim 6 27 1, 3, 4, 25 and 26 This combination is specifically listed in reference patent claim 6 28 1, 3, 4, 25 and 26 This combination is specifically listed in reference patent claim 6 30 1, 3, 4, 25 and 26 This combination is specifically listed in reference patent claim 6 31 1, 3, 4, 25 and 26 This combination is specifically listed in reference patent claim 6 32 1, 3, 4, 25 and 26 This combination is specifically listed in reference patent claim 6 33 1, 3, 4, 25 and 26 This combination is specifically listed in reference patent claim 6 34 1, 3, 4, 25 and 26 This combination is specifically listed in reference patent claim 6 35 1, 3, 4, 25 and 26 This combination is specifically listed in reference patent claim 6 36 1, 3, 4, 25 and 26 This combination is specifically listed in reference patent claim 6 37 1, 3, 4, 25 and 26 This combination is specifically listed in reference patent claim 6 38 1, 3, 4, 25 and 26 This combination is specifically listed in reference patent claim 6 39 1, 3, 4, 25 and 26 This combination is specifically listed in reference patent claim 6 40 1, 3, 4, 25 and 26 This combination is specifically listed in reference patent claim 6 41 1, 3, 4, 25 and 26 This combination is specifically listed in reference patent claim 6 42-49 1, 3, 4, 25 and 26 As above for claim 21, and 95% identity is at once envisaged from reference patent claim’s at least 75% and narrower identities 50-57 1, 3, 4, 25 and 26 As above for claim 21, and the exact sequence as set forth in instant claims 50-57 is at once envisaged from reference patent claims 1 and 6 that list these sequences Conclusion No claim is allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to JOSEPH FISCHER whose telephone number is (571)270-7925. The examiner can normally be reached on Monday to Friday, 9:00 AM to 5:00 PM, however noting that the examiner will not normally be working on Wednesday-Friday and on Monday/Tuesday on alternating weeks, but will promptly answer messages upon his return to work. 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 on 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. /JOSEPH FISCHER/Examiner, Art Unit 1658
Read full office action

Prosecution Timeline

Sep 22, 2022
Application Filed
Mar 18, 2024
Non-Final Rejection — §DP
Sep 20, 2024
Response Filed
Sep 30, 2024
Examiner Interview (Telephonic)
Oct 24, 2024
Final Rejection — §DP
Jan 14, 2025
Response after Non-Final Action
Mar 04, 2025
Request for Continued Examination
Mar 12, 2025
Response after Non-Final Action
Sep 29, 2025
Non-Final Rejection — §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12594350
CD8-SPECIFIC CAPTURE AGENTS, COMPOSITIONS, AND METHODS OF USING AND MAKING
2y 5m to grant Granted Apr 07, 2026
Patent 12589158
GLP-1/GIP DUAL AGONIST, PREPARATION METHOD AND USE THEREOF
2y 5m to grant Granted Mar 31, 2026
Patent 12583895
POLYPEPTIDES FOR RESTORING ENDOTHELIAL FUNCTION AND METHODS OF USE THEREOF
2y 5m to grant Granted Mar 24, 2026
Patent 12582694
COMPOUNDS AND METHODS FOR INHIBITING PROTOZOAN PARASITES
2y 5m to grant Granted Mar 24, 2026
Patent 12583907
MODIFIED PLASMA CLOTTING FACTOR VIII AND METHOD OF USE THEREOF
2y 5m to grant Granted Mar 24, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

3-4
Expected OA Rounds
43%
Grant Probability
89%
With Interview (+45.8%)
3y 4m
Median Time to Grant
High
PTA Risk
Based on 329 resolved cases by this examiner. Grant probability derived from career allow 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