Prosecution Insights
Last updated: April 19, 2026
Application No. 17/481,679

COMPOSITIONS AND METHODS FOR MODULATING TAU EXPRESSION

Non-Final OA §102§DP
Filed
Sep 22, 2021
Examiner
MCGARRY, SEAN
Art Unit
1635
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Ionis Pharmaceuticals Inc.
OA Round
2 (Non-Final)
71%
Grant Probability
Favorable
2-3
OA Rounds
2y 8m
To Grant
88%
With Interview

Examiner Intelligence

Grants 71% — above average
71%
Career Allow Rate
622 granted / 874 resolved
+11.2% vs TC avg
Strong +17% interview lift
Without
With
+16.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
9 currently pending
Career history
883
Total Applications
across all art units

Statute-Specific Performance

§101
3.9%
-36.1% vs TC avg
§103
33.3%
-6.7% vs TC avg
§102
18.2%
-21.8% vs TC avg
§112
23.9%
-16.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 874 resolved cases

Office Action

§102 §DP
Notice of Pre-AIA or AIA Status The present application is being examined under the pre-AIA first to invent provisions. This Official Action considers the response filed 6/6/2024. The arguments filed therewith are sufficient to overcome the rejection of Olek et al (WO200177384) under 35 U.S.C. 102(b), and the rejections under the nonstatutory double patenting rejections based on a judicially created doctrine. Election/Restrictions Applicant’s election without traverse of Group I and SEQ ID NO:35 in the reply filed on 9/01/2023 is acknowledged. Claims 1-34 are pending and examined herein. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of pre-AIA 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (b) the invention was patented or described in a printed publication in this or a foreign country or in public use or on sale in this country, more than one year prior to the date of application for patent in the United States. Claims 1-9, 12-17, and 20-27 is/are rejected under pre-AIA 35 U.S.C. 102(b) as being anticipated by Yague et al (US20090176728). Yague et al have disclosed at least SEQ ID NOS282 and 283 which correspond to an siRNA targeting Tau/MAPT. The siRNA comprises at least 8 contiguous nucleotides of the instant SEQ ID NO:35 and is 100% complementary to the instant SEQ ID NO:1. It has been disclosed the modifications recited in the claims. See, for example, paragraphs 2, 33, 37, 41-44, 47, 48, 50, 52, 57, 59, and 60. Applicants arguments filed 6/6/2024 have been considered but are not convincing. Applicant is remined that the nucleic acids disclosed in Yague et al are comprised of two single stranded oligonucleotides. Applicants alignments are drawn to the sense strand. The antisense strand is the oligonucleotide relied on the rejection of record. Claims 10, 11, 18, 19 and 28-34 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 and limited to the elected examined species. There is no motivation to modify an siRNA molecule with morpholino modifications. 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 extension fee 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 SEAN MCGARRY whose telephone number is (571)272-0761. The examiner can normally be reached M-Th/F 9:00-7:30. 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, Ram Shukla can be reached on 571 272 1600. 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. /SEAN MCGARRY/Primary Examiner, Art Unit 1635
Read full office action

Prosecution Timeline

Sep 22, 2021
Application Filed
Dec 06, 2023
Non-Final Rejection — §102, §DP
Jun 06, 2024
Response Filed
Sep 11, 2024
Final Rejection — §102, §DP
Mar 11, 2025
Notice of Allowance
Oct 07, 2025
Request for Continued Examination
Oct 08, 2025
Response after Non-Final Action

Precedent Cases

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

2-3
Expected OA Rounds
71%
Grant Probability
88%
With Interview (+16.6%)
2y 8m
Median Time to Grant
Moderate
PTA Risk
Based on 874 resolved cases by this examiner. Grant probability derived from career allow rate.

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