Prosecution Insights
Last updated: August 06, 2026
Application No. 17/283,658

RECOMBINANT RSV LIVE VACCINE STRAIN AND PRODUCTION METHOD THEREFOR

Final Rejection §103§112
Filed
Apr 08, 2021
Priority
Oct 12, 2018 — RE 10-2018-0122162 +1 more
Examiner
LI, BAO Q
Art Unit
1671
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
SK Bioscience Co. Ltd.
OA Round
5 (Final)
76%
Grant Probability
Favorable
6-7
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allowance Rate
683 granted / 905 resolved
+15.5% vs TC avg
Strong +26% interview lift
Without
With
+26.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
28 currently pending
Career history
931
Total Applications
across all art units

Statute-Specific Performance

§101
3.5%
-36.5% vs TC avg
§103
22.2%
-17.8% vs TC avg
§102
26.8%
-13.2% vs TC avg
§112
26.5%
-13.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 905 resolved cases

Office Action

§103 §112
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 . Remark The response filed on 6/26/2026 have been acknowledged. Status of the Claims Claims 1-4, 10-12, 14-15, 17-24 are pending. Claims 5-9, 13, 16 have been canceled. Claims 1-3, 10-12, 14-15 and 23-24 read on the elected species (A) Paramyxoviridae, (C) the antigenome of RSV of SEQ ID NO: 7; and (D) Avulavirus of the family Paramyxoviridae are considered based on the election without traverse made by Applicants on. Jan 16, 2024. Claims 4 and 17-22 that are not read on the elected species are withdrawn from consideration. Claim Rejections - 35 USC § 112 The rejection of Claims 10 and 23-24 under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph has been removed because the specification has been found to provide a support on page 19 for the NDV insertion support as the argument provided by Applicants. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claims 1-2, 10, 12, 14-15 and 23 rejected under 35 U.S.C. 103 as being unpatentable over US Patent No. 7,662,397B2 (397B2). In the response, Applicants traverse the rejection and submit that the purpose or intended function of substitute the endogenous F protein with the F proteins derived from viruses belonging to the family Paramyxoviridae (measles virus and Newcastle disease virus are different , i.e. the claimed substitution is for inducing a different immunogenicity carried by the claimed RSV vector, whereas the current claimed recombinant RSV is for a more stable RSV vector. Applicants’ Argument have been respectfully considered, however, it is not found persuasive.Regarding to this rejection, applicants’ attention is directed to the case law of In re Sussman, 141 F. 2d 267, 60 U.S.P.Q. 538 (CCPA 1944), which cites "since the steps are the same, the results must inherently be the same unless they are due to conditions not recited in the claims." In the instant case, Applicant(s) is (are) claiming an invention employing the same process steps but the product(s) is(are) alleged to be different. If the claimed products are structurally different, Applicant is required to recite the missing steps to form the alleged different product(s) in view of the above cited decision. As the heterologous sequences inserted into the vector are same , the immunogenicity of the heterologous sequence expressed and presented by the claimed vector are same. To this context, the rejection is maintained. Conclusion 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. /BAO Q LI/ Primary Examiner, Art Unit 1671
Read full office action

Prosecution Timeline

Show 11 earlier events
Sep 29, 2025
Notice of Allowance
Dec 01, 2025
Response after Non-Final Action
Dec 06, 2025
Response after Non-Final Action
Jan 09, 2026
Examiner Interview (Telephonic)
Feb 26, 2026
Non-Final Rejection mailed — §103, §112
Jun 26, 2026
Response Filed
Jul 08, 2026
Examiner Interview (Telephonic)
Jul 15, 2026
Final Rejection mailed — §103, §112 (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

6-7
Expected OA Rounds
76%
Grant Probability
99%
With Interview (+26.4%)
2y 10m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 905 resolved cases by this examiner. Grant probability derived from career allowance rate.

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