Prosecution Insights
Last updated: April 19, 2026
Application No. 17/848,736

STRUCTURE-BASED PEPTIDE INHIBITORS OF ALPHA-SYNUCLEIN AGGREGATION

Non-Final OA §112§DP
Filed
Jun 24, 2022
Examiner
COFFA, SERGIO
Art Unit
1658
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
The Regents of the University of California
OA Round
1 (Non-Final)
61%
Grant Probability
Moderate
1-2
OA Rounds
2y 11m
To Grant
94%
With Interview

Examiner Intelligence

Grants 61% of resolved cases
61%
Career Allow Rate
436 granted / 719 resolved
+0.6% vs TC avg
Strong +34% interview lift
Without
With
+33.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
61 currently pending
Career history
780
Total Applications
across all art units

Statute-Specific Performance

§101
3.5%
-36.5% vs TC avg
§103
32.1%
-7.9% vs TC avg
§102
20.5%
-19.5% vs TC avg
§112
27.0%
-13.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 719 resolved cases

Office Action

§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 with traverse of Group I, a polynucleotide encoding SEQ ID NO: 3, a viral vector, and a human cell in the reply filed on 9/2/2025 is acknowledged. The traversal is on the ground(s) that the subject matter of each of the claim Groups is linked by a common inventive concept. Therefore, there is no serious burden on the Examiner to collectively examine the different claim Groups of the subject application. This is not found persuasive because, as discussed in the requirement for restriction/election mailed on 7/2/2025, Groups I-II have a different classification. Furthermore, since the claimed groups are related as process of making and product made, restriction between said groups is proper under 35 USC 121. The requirement is still deemed proper and is therefore made FINAL. Claims 27 and 30-40 are withdrawn from further consideration pursuant to 37 CFR 1.142(b), as being drawn to a nonelected species/invention, there being no allowable generic or linking claim. Applicant timely traversed the restriction (election) requirement in the reply filed on 9/2/2025. Status of the Claims Claims 21-40 are pending in this application. Claims 27 and 30-40 are withdrawn from consideration as being drawn to a non-elected species/invention. Claims 21-26 and 28-29 are presently under consideration as being drawn to the elected species/invention. Sequence Compliance Applicant is advised that the application is not in compliance with 37 CFR §§ 1.821-1.825. This application contains sequence disclosures that are encompassed by the definitions for nucleotide and/or amino acid sequences set forth in 37 CFR § 1.821(a)(1) and (a)(2). However, this application fails to comply with the requirements of 37 CFR §§ 1.821-1.825. Applicant must comply with the requirements of the sequence rules (37 CFR §§ 1.821- 1.825) in order to completely respond to this office action. Specifically, the amino acid sequences presented in Figure 1B and in the specification (Table 1, para [0043]; paras [0050] and [0078]) require sequence identifiers. In order to satisfy the sequence rules requirements, Applicant needs to provide an amendment to the instant claims, specification and drawings to include reference to the appropriate sequence identifier “SEQ ID NO:” in parenthesis next to each of the sequences having 4 or more amino acids. Please confirm that all peptides having 4 or more than 4 amino acid residues have sequence identifiers and are included in the sequence listing. In case of any new sequences not properly identified in the instant specification, Applicant is required to provide a substitute computer readable form (CRF) copy of a “Sequence Listing” which includes all of the sequences that are present in the instant application and encompassed by these rules, a new or substitute paper copy of that “Sequence Listing”, an amendment directing the entry of that paper copy into the specification, and a statement that the content of the paper and computer readable copies are the same and, where applicable, include no new matter, as required by 37 C.F.R. § 1.821(e) or 1.821(f) or 1.821(g) or 1.825(d). The instant specification will also need to be amended so that it complies with 37 C.F.R. § 1.821(d) which requires a reference to a particular sequence identifier (SEQ ID NO:) be made in the specification and claims wherever a reference is made to that sequence. For rules interpretation Applicant may call (571) 272-2533. See M.P.E.P. 2422.04. Please direct all replies to the United States Patent and Trademark Office via one (1) of the following: 1. Electronically submitted through EFS-Bio (<http://www.uspto.gov/ebc/efs/downloads/documents.htm>, EFS Submission User Manual - ePave) 2. US Postal Service: Commissioner for Patents PO Box 22313-1450 Alexandria, VA 22313-1450 3. Hand carry, Federal Express, United Parcel Service, or other delivery service: U.S. Patent and Trademark Office Mail Stop Sequence Customer Window, Randolph Building 401 Dulany Street Alexandria, VA 22314 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. Claim 29 is rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. The claim is drawn to the polynucleotide of claim 28, wherein the heterologous peptide tag comprises: an amino acid sequence that increases peptide solubility; an amino acid sequence that facilitates monitoring of the peptide; and/or an amino acid sequence that facilitates peptide entry into a mammalian cell. When referring to the “amino acid sequence that increases peptide solubility”; the “amino acid sequence that facilitates monitoring of the peptide”; and the “amino acid sequence that facilitates peptide entry into a mammalian cell”, the specification does not provide any structural attributes. Without a correlation between structure and function, the claims do little more than define the claimed invention by function. That is not sufficient to satisfy the written description requirement. See Eli Lilly, 119 F.3d at 1568, 43 USPQ2d at 1406 (“A definition by function alone “does not suffice” to sufficiently describe a coding sequence because it is only an indication of what the gene does, rather than what it is”).” Here, the specification fails to describe what sequence/structure correlates with the required activity (i.e. to increases peptide solubility; to facilitate monitoring of the peptide; and to facilitates peptide entry into a mammalian cell). The MPEP states that a broad genus can be described by a showing of representative number of examples. The claims in the instant application are broad. Based on the teachings of the specification, the “amino acid sequence that increases peptide solubility”; the “amino acid sequence that facilitates monitoring of the peptide”; and the “amino acid sequence that facilitates peptide entry into a mammalian cell” can be any peptide or molecule. However, the specification fails to provide a representative number of examples for the claimed “amino acid sequence that increases peptide solubility”; “amino acid sequence that facilitates monitoring of the peptide”; and “amino acid sequence that facilitates peptide entry into a mammalian cell”. The description requirement of the patent statute requires a description of an invention, not an indication of a result that one might achieve if one made that invention. See In re Wilder, 736 F.2d 1516, 1521, 222 USPQ 369, 372-73 (Fed. Cir. 1984) (affirming a rejection for lack of written description because the specification does “little more than outline goals appellants hope the claimed invention achieves and the problems the invention will hopefully ameliorate”). Therefore, since the specification fails to identify any relevant structural characteristics that can be attributed to the claimed function and activity, the claimed invention lacks written description. 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 23-26 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. Claim 23 is drawn to the expression vector of claim 22, wherein the polynucleotide is operably linked to a regulatory control sequence. The phrase “regulatory control sequence” is not define in the specification. One of ordinary skill in the art would not know what is encompassed by said phrase. Therefore, the claim is indefinite. Similarly, in claims 24-25, the words “promoter” and “enhancer” are not defined, thus rendering the claims indefinite. Claims 24-26 which depend from claim 23 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 23. 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 21-26 and 28-29 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-19 of U.S. Patent No. 10815271. Although the claims at issue are not identical, they are not patentably distinct from each other because they relate to the same polynucleotide. With respect to claims 21-22, ‘271 teaches a composition of matter comprising at least one inhibitory peptide that inhibits a-synuclein (SEQ ID NO: 1) aggregation by binding to residues 68-78 of a-synuclein; wherein: the inhibitory peptide comprises the sequence: GAVVWGVTAVKK (SEQ ID NO: 3) or RAVVTGVTAVAE (SEQ ID NO: 4) (claim 1). ‘271 also teach an expression vector encoding the inhibitory peptide (claim 10). It is noted that the expression vector must necessarily comprise the polynucleotide encoding the inhibitory peptide. With respect to claims 23-25 and 29, ‘271 teaches that the inhibitory peptide is coupled to a heterologous peptide tag (claim 1), wherein the heterologous peptide tag comprises: an amino acid sequence that increases peptide solubility; an amino acid sequence that facilitates monitoring of the peptide; and/or an amino acid sequence that facilitates peptide entry into a mammalian cell (claim 4). With respect to claim 26, ‘271 teaches a cell transfected with the polynucleotide or the expression vector (column 12, lines 23-29). With respect to claim 28, ‘271 teaches a detectable label that is coupled to the inhibitory peptide (claim 16), wherein the detectable label comprises a heterologous peptide tag (claim 17). 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 24, 2022
Application Filed
Feb 16, 2023
Response after Non-Final Action
Oct 05, 2025
Non-Final Rejection — §112, §DP (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 (+33.6%)
2y 11m
Median Time to Grant
Low
PTA Risk
Based on 719 resolved cases by this examiner. Grant probability derived from career allow rate.

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