Prosecution Insights
Last updated: April 19, 2026
Application No. 17/821,359

OPTIMIZED FACTOR VIII GENES

Final Rejection §DP§Other
Filed
Aug 22, 2022
Examiner
DACE DENITO, ALEXANDRA GERALDINE
Art Unit
1636
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
BIOVERATIV THERAPEUTICS INC.
OA Round
4 (Final)
54%
Grant Probability
Moderate
5-6
OA Rounds
3y 0m
To Grant
92%
With Interview

Examiner Intelligence

Grants 54% of resolved cases
54%
Career Allow Rate
23 granted / 43 resolved
-6.5% vs TC avg
Strong +38% interview lift
Without
With
+38.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
50 currently pending
Career history
93
Total Applications
across all art units

Statute-Specific Performance

§101
5.9%
-34.1% vs TC avg
§103
34.1%
-5.9% vs TC avg
§102
17.3%
-22.7% vs TC avg
§112
30.1%
-9.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 43 resolved cases

Office Action

§DP §Other
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 . Priority Applicant’s claim to priority from Provisional Application No. 63/236,225 filed 08/23/2021 is hereby acknowledged. Application Status Amendments filed on 12/19/2025 have been received and are hereby acknowledged. Claims 2-4, 6, 8-9, 11-31, 34-45, 47-48, 51-52, and 55-60 are cancelled. Claims 1, 5, 7, 10, 32, 33, 46, 49-50 and 53-54 are pending. Claim 10 is withdrawn for further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected species. Therefore, claims 1, 5, 7, 32, 33, 46, 49-50, and 53-54 are under examination in current office action. Any rejection or objection not reiterated herein has been overcome by Applicant’s amendments and therefore has been withdrawn. Applicant’s amendments and arguments have been thoroughly reviewed, but are not persuasive to place the claims in condition for allowance for the reasons that follow. Information Disclosure Statement The information disclosure statements (IDSs) submitted on 12/19/2025 was filed after the mailing date of the Office Action on 09/19/2025. The submission is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. The following rejections are modified as necessitated by Applicant’s amendments, but are maintained from previous Office Action dated 09/19/2025: 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 1, 5, 7, 32, 46, 49, 50 and 54 are provisionally rejected on the ground of non-statutory double patenting as being unpatentable over claims 1, 7, 24, 26, 29, 49-50, 52 , and 76-77 of co-pending Application No. 17/821,356 (US2023009132-A1). Although the claims at issue are not identical, they are not patentably distinct from each other because: Regarding claim 1, reciting “An isolated nucleic acid molecule comprising a nucleotide sequence at least 85% identical to SEQ ID NO: 9”, claims 1 and 77 of co-pending app.’356 have SEQ ID NO: 9 that is 100% identical to instant application’s SEQ ID NO: 9. Claims 26 and 76 of co-pending application ‘356 are drawn to a nucleotide sequence set forth in SEQ ID NO: 14 or SEQ ID NO: 35. SEQ ID NO: 9 is 100% identical to SEQ ID NO:35. SEQ ID NO: 9 is also contained within SEQ ID NO: 14 with 100% sequence homology. Claim 29 of co-pending app.’356 is drawn to a heterologous polynucleotide sequence encoding a clotting factor. Regarding claim 5, claim 1 of co-pending app.’356 is drawn to a SEQ ID NO: 33 that is 100% identical to nucleotides 58-4824 of SEQ ID NO: 9. Regarding claim 32, claims 1 and 24 of co-pending application ‘562 are drawn to a first and second inverted repeat (ITR) flanking the genetic cassette. Claim 1’s of co-pending app.’356 is drawn to SEQ ID NOs: 1 and 2 encoding for ITRs. Regarding claims 32 and 46, claim 7 of co-pending app.’356 is drawn to all elements a, b, c, d, e and f. Regarding claim 49, claim 49 of co-pending app.’356 is drawn to same elements, i.e. a vector comprising the nucleic acid molecule of claim 1. Regarding claim 50, claim 50 of co-pending app. ‘356 is drawn to a host cell comprising the nucleic acid molecule of claim 1. Regarding claim 54, claim 52 of co-pending app.’356 is drawn to a pharmaceutical composition comprising the nucleic acid molecule of claim 1. This is a provisional non-statutory double patenting rejection because the patentably indistinct claims have not in fact been patented. Claim Objections Claims 33 and 53 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Response to Arguments Applicant's arguments filed 05/28/2025 have been fully considered but they are not persuasive. In response, Benefit claims under 35 U.S.C. 119(e) and foreign priority claims under 35 U.S.C. 119(a)-(d) or (f), 365(a) or (b), or 386(a) or (b) are not taken into account when determining the term of an issued patent (see 35 U.S.C. 154(a)(2) and (a)(3) ), and therefore, are not taken into account in determining the patent term filing date of an application. Regarding Applicant’s argument stating: “there is no rationale for applying a double patenting rejection in the instant case”, Examiner respectfully disagrees. In response, MPEP 1490(VI)(D)(2)(b) states : “(b) Application under Examination Has the Same Patent Term Filing Date If both the application under examination and the reference application have the same patent term filing date, the provisional nonstatutory double patenting rejection made in each application should be maintained until it is overcome. Provisional nonstatutory double patenting rejections are subject to the requirements of 37 CFR 1.111(b). Thus, applicant can overcome a provisional nonstatutory double patenting rejection by filing a reply that either shows that the claims subject to the rejection are patentably distinct from the claims of the reference application or includes a compliant terminal disclaimer in the application under 37 CFR 1.321 that obviates the rejection. If the reply is sufficient, the examiner will withdraw the nonstatutory double patenting rejection in the application in which it was submitted.” Therefore, the rejections are maintained. Allowable Subject Matter The following is an examiner’s statement of reasons for the indication of allowable subject matter: Claim 1 contains elements that appear to be allowable over prior art: SEQ ID NO: 9 or a sequence at least 85% identical to SEQ ID NO: 9 does not appear to be found in prior art. Other reasons for indicating allowable subject matter have been disclosed in the previous Office Action dated 09/19/2025. Conclusion No claims are allowed. Claims 33 and 53 are objected to. THIS ACTION IS MADE FINAL. 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 ALEXANDRA G DACE DENITO whose telephone number is (703)756-4752. The examiner can normally be reached Monday-Friday, 8:30-5:00EST. 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, Neil Hammell can be reached on 571-270-5919. 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. /A.D./Examiner, Art Unit 1636 /NANCY J LEITH/Primary Examiner, Art Unit 1636
Read full office action

Prosecution Timeline

Aug 22, 2022
Application Filed
Feb 23, 2024
Non-Final Rejection — §DP, §Other
May 29, 2024
Response Filed
Sep 26, 2024
Final Rejection — §DP, §Other
Jan 28, 2025
Notice of Allowance
May 28, 2025
Request for Continued Examination
Jun 03, 2025
Response after Non-Final Action
Sep 15, 2025
Non-Final Rejection — §DP, §Other
Dec 19, 2025
Response Filed
Mar 19, 2026
Final Rejection — §DP, §Other (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12570996
Circular RNA For Translation In Eukaryotic Cells
2y 5m to grant Granted Mar 10, 2026
Patent 12529048
DOUBLE KNOCK-OUT CHO CELL LINE METHOD OF ITS GENERATION AND PRODUCING THERAPEUTIC PROTEINS THEREFROM
2y 5m to grant Granted Jan 20, 2026
Patent 12516376
OPTIMIZING BAG3 GENE THERAPY
2y 5m to grant Granted Jan 06, 2026
Patent 12509701
Circular RNA For Translation In Eukaryotic Cells
2y 5m to grant Granted Dec 30, 2025
Patent 12509686
COMPOSITION FOR REGULATING PRODUCTION OF INTERFERING RIBONUCLEIC ACID
2y 5m to grant Granted Dec 30, 2025
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

5-6
Expected OA Rounds
54%
Grant Probability
92%
With Interview (+38.1%)
3y 0m
Median Time to Grant
High
PTA Risk
Based on 43 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