Prosecution Insights
Last updated: October 27, 2026
Application No. 18/259,520

Polyolefin-Based Ionomers and Production Thereof

Non-Final OA §112
Filed
Jun 27, 2023
Priority
Dec 29, 2020 — provisional 63/131,505 +1 more
Examiner
KAUCHER, MARK S
Art Unit
1764
Tech Center
1700 — Chemical & Materials Engineering
Assignee
ExxonMobil Chemical Patents Inc.
OA Round
1 (Non-Final)
72%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
86%
With Interview

Examiner Intelligence

Grants 72% — above average
72%
Career Allowance Rate
734 granted / 1013 resolved
+7.5% vs TC avg
Moderate +14% lift
Without
With
+14.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
33 currently pending
Career history
1049
Total Applications
across all art units

Statute-Specific Performance

§101
0.9%
-39.1% vs TC avg
§103
42.9%
+2.9% vs TC avg
§102
23.3%
-16.7% vs TC avg
§112
20.4%
-19.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1013 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 . Election/Restrictions Claims 1-7 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 9/1/26. Applicant’s election without traverse of Group II, claims 8-17 in the reply filed on 9/1/26 is acknowledged. Claim Objections Claim 13 is objected to because of the following informalities: Specifically, claim 13 does not end in a period. Appropriate correction is required. 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. Claim 9, 12-13 and 17 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. Claim 9 (which claims 12, 13 and 17 depend upon) recites the limitation "metal alkenyl" in the second line. There is insufficient antecedent basis for this limitation in the claim. Note specifically that in parent claim 8, the aluminum vinyl (AV) units are formed, which while are metal alkenyl units, the term is broader and raises questions about what the limitation is referring to. Amending the claim from “metal alkenyl” to “aluminum vinyl” will overcome the instant rejection. Allowable Subject Matter Claims 8, 10-11 and 14-16 allowed. The closest prior art is listed below: US Patent 12,195,563 (provisional application has same date of 12/29/20) is directed towards similar ionomers. The patented claims are directed towards similar ionomers, however are silent on the steps of introducing oxidizing agents, introducing metal cations and the crystallinity. US 2017/0355786 teaches similar methods of providing copolymers with AV units that are quenched with oxidizing agents to form polar side chains. However, the claimed step of introducing metal cation and forming an ionomer is not taught. Moreover, the claimed properties are not taught. US 2018/0194872 teaches similar copolymers that are in the claimed “providing a copolymer step”, which comprise AV units. However, the copolymers are never oxidized, followed by treated with the claimed metal cation. Moreover, the tensile strength, Tg and crystallinity are not taught. JP 2003-246820, cited as D1 in the ISR, teaches similar processes, however the claimed tensile strength, glass transition temperature and crystallinity is not taught. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to MARK S KAUCHER whose telephone number is (571)270-7340. The examiner can normally be reached M-F 8-6 PM EST. 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, Arrie Lanee Reuther can be reached at (571) 270-7026. 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. /MARK S KAUCHER/Primary Examiner, Art Unit 1764
Read full office action

Prosecution Timeline

Jun 27, 2023
Application Filed
Jan 22, 2024
Response after Non-Final Action
Oct 02, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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Patent 12760133
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3y 2m to grant Granted Oct 13, 2026
Patent 12753310
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Patent 12753258
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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
72%
Grant Probability
86%
With Interview (+14.0%)
2y 9m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1013 resolved cases by this examiner. Grant probability derived from career allowance rate.

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