Prosecution Insights
Last updated: April 19, 2026
Application No. 17/774,329

TREATMENT FOR PRIMARY AND METASTATIC CANCER

Final Rejection §103§112
Filed
May 04, 2022
Examiner
SALVOZA, M FRANCO G
Art Unit
1672
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Duke University
OA Round
2 (Final)
69%
Grant Probability
Favorable
3-4
OA Rounds
3y 2m
To Grant
98%
With Interview

Examiner Intelligence

Grants 69% — above average
69%
Career Allow Rate
414 granted / 600 resolved
+9.0% vs TC avg
Strong +29% interview lift
Without
With
+29.2%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
46 currently pending
Career history
646
Total Applications
across all art units

Statute-Specific Performance

§101
8.4%
-31.6% vs TC avg
§103
31.0%
-9.0% vs TC avg
§102
12.1%
-27.9% vs TC avg
§112
26.8%
-13.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 600 resolved cases

Office Action

§103 §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 1. Claims 1, 7 are amended. Claims 20-22 are withdrawn. Claims 8, 11 are canceled. Claims 1-7, 9, 10, 12-19 are under consideration. Information Disclosure Statement 2. The information disclosure statement (IDS) was submitted on 10/2/2025. The submission is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. 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. 3. (new, necessitated by amendment) Claims 1-7, 9, 10, 12-19 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. See claims 1-7, 9, 10, 12-19 as submitted 10/2/2025. Amended claim 1 recites “contacting tumor cells of the first tumor only with a chimeric poliovirus … such that the one or more distal tumors are not contacted with the chimeric poliovirus”. It is not clear what “such that” means. It is not clear what is to be done or what steps are be taken to ensure one or more distal tumors are not contacted with the chimeric poliovirus. Claim Rejections - 35 USC § 103 4. (previous rejection, withdrawn) Claims 1-5, 7, 12, 18, 19 were rejected under 35 U.S.C. 103 as being unpatentable over Gromeier et al. (US20170216382)(cited in applicant’s IDS submitted 5/22/2024) in view of McCarthy et al. (“Developing Picornaviruses for Cancer Therapy,” Cancers 11, 685 (2019)) (cited in applicant’s IDS submitted 5/22/2024). Applicant contends: Ansardi in McCarthy et al. teaches replication incompetent poliovirus replicons; there are differences between those poliovirus replicons and the claimed chimeric poliovirus; one of ordinary skill in the art would not have had any basis to expect them to function in the same way; the claimed poliovirus has capsid of live attenuated type 1 vaccine; replicons in Ansardi do not encode the poliovirus capsid proteins; by inserting foreign sequences in lieu of the viral capsid ORF, Ansardi interferes with the viral replication cycle; the deletion of the viral capsid ORF and the presence of foreign sequences for the capsid protein in the replicons of Ansardi are major triggers for genetic variability; McCarthy combined with Gromeier does not teach a method as claimed; a skilled person could not have had any reasonable expectation of success. In view of applicant’s amendments and upon consideration of applicant’s arguments, the rejection is withdrawn. 5. (previous rejection, withdrawn) Claims 6, 13-15 were rejected under 35 U.S.C. 103 as being unpatentable over Gromeier et al. in view of McCarthy et al. as applied to claims 1-5, 7, 12, 18, 19 above, and further in view of Brlic et al. (“Targeting PVR (CD155) and its receptors in anti-tumor therapy,” Cellular & Molecular Immunology, 16: 40-52 (2018); previously cited). Applicant contends: the other reference does not cure the deficiency. In view of the withdrawal of the rejection over Gromeier et al. in view of McCarthy et al. on which the instant rejection depends, the instant rejection is also withdrawn. 6. (previous rejection, withdrawn) Claim 9 was rejected under 35 U.S.C. 103 as being unpatentable over Gromeier et al. in view of McCarthy et al. as applied to claims 1-5, 7, 12, 18, 19 above, and further in view of Morrow et al. (U.S. Patent No. 5622705; previously cited). Applicant contends: the other reference does not cure the deficiency. In view of the withdrawal of the rejection over Gromeier et al. in view of McCarthy et al. on which the instant rejection depends, the instant rejection is also withdrawn. 7. (previous rejection, withdrawn) Claims 10, 16, 17 were rejected under 35 U.S.C. 103 as being unpatentable over Gromeier et al. in view of McCarthy et al. as applied to claims 1-5, 7, 12, 18, 19 above, and further in view of Bigner et al. (WO2017066557A1; previously cited). Applicant contends: the other reference does not cure the deficiency. In view of the withdrawal of the rejection over Gromeier et al. in view of McCarthy et al. on which the instant rejection depends, the instant rejection is also withdrawn. Conclusion 8. No claims are allowed. 9. 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 M FRANCO G SALVOZA whose telephone number is (571)272-4468. The examiner can normally be reached M-F 8:00 to 5:00. 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, Janet Andres can be reached at 571-272-0867. 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. /M FRANCO G SALVOZA/Primary Examiner, Art Unit 1672
Read full office action

Prosecution Timeline

May 04, 2022
Application Filed
Jun 28, 2025
Non-Final Rejection — §103, §112
Oct 02, 2025
Response Filed
Jan 31, 2026
Final Rejection — §103, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12599656
METHODS FOR TREATING HPV-ASSOCIATED DISEASES
2y 5m to grant Granted Apr 14, 2026
Patent 12577541
METHOD FOR LARGE-SCALE PREPARATION OF PURIFIED PREPARATION OF RECOMBINANT LENTIVIRAL VECTOR AT GMP GRADE
2y 5m to grant Granted Mar 17, 2026
Patent 12564643
POLYMERIC NANOVACCINES AND USES THEREOF
2y 5m to grant Granted Mar 03, 2026
Patent 12564663
MICROPOROUS ANNEALED PARTICLE GEL SYSTEM
2y 5m to grant Granted Mar 03, 2026
Patent 12558418
EGG ALLERGY ANTIGEN
2y 5m to grant Granted Feb 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
69%
Grant Probability
98%
With Interview (+29.2%)
3y 2m
Median Time to Grant
Moderate
PTA Risk
Based on 600 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