Prosecution Insights
Last updated: October 04, 2026
Application No. 18/703,113

SILYL ETHER DERIVATIVES OF POLYETHER POLYMERS

Non-Final OA §112
Filed
Apr 19, 2024
Priority
Oct 19, 2021 — provisional 63/257,278 +2 more
Examiner
BAHTA, MEDHANIT W
Art Unit
Tech Center
Assignee
P2 Science Inc.
OA Round
1 (Non-Final)
81%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 81% — above average
81%
Career Allowance Rate
640 granted / 794 resolved
+20.6% vs TC avg
Strong +28% interview lift
Without
With
+28.2%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
45 currently pending
Career history
829
Total Applications
across all art units

Statute-Specific Performance

§101
1.5%
-38.5% vs TC avg
§103
40.4%
+0.4% vs TC avg
§102
15.7%
-24.3% vs TC avg
§112
29.2%
-10.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 794 resolved cases

Office Action

§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 . Status of the Claims The preliminary amendment filed on 04/19/2024 has been entered. Claims 5-11, 14 and 18-19 have been amended. Thus claims 1-20 are currently pending and under examination. 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. Claims 1-20 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. Regarding claims 1, 5-6, 9-11, 15 and 17, the parenthetical limitations following "e.g." render the claims indefinite because it is unclear whether the limitations are part of the claimed invention. See MPEP § 2173.05(d). Claims 2-16 and 19-20 are also rendered indefinite for their dependency on claim 1. Claim 18 recites the limitation “Formula…II, III or IV” in line 1. There is insufficient antecedent basis for this limitation in the claim. Allowable Subject Matter The subject matter of claims 1-20 is free of prior art reference. The closest prior art reference is Patent application publication number US2020/0165383A1 (US’383; cited in IDS 04/19/2024). The reference teaches PNG media_image1.png 399 302 media_image1.png Greyscale PNG media_image2.png 212 289 media_image2.png Greyscale However, US’383 fails to teach the compound of formula I (claim 1) or formula II, III or IV (claim 17) as instantly claimed. Furthermore, there is no suggestion in US’383 to modify the compound of formula Y to reasonably arrive at the instantly claimed compound of formula I (claim 1) or formula II, III or IV (claim 17). In view of the foregoing, the claimed invention is deemed novel and unobvious over the closest prior art reference. Conclusion Claims 1-20 are rejected and no claims are allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to MEDHANIT W BAHTA whose telephone number is (571)270-7658. The examiner can normally be reached Monday-Friday 8am-5pm. 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, Scarlett Goon can be reached at 571-270-5241. 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. /MEDHANIT W BAHTA/ Primary Examiner, Art Unit 1692
Read full office action

Prosecution Timeline

Apr 19, 2024
Application Filed
Aug 20, 2026
Non-Final Rejection mailed — §112 (current)

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

1-2
Expected OA Rounds
81%
Grant Probability
99%
With Interview (+28.2%)
2y 1m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 794 resolved cases by this examiner. Grant probability derived from career allowance rate.

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