Prosecution Insights
Last updated: April 19, 2026
Application No. 18/753,631

ONE-PACK POLYMER MODIFIERS

Final Rejection §112§DP
Filed
Jun 25, 2024
Examiner
WOODWARD, ANA LUCRECIA
Art Unit
1765
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Arkema France
OA Round
2 (Final)
73%
Grant Probability
Favorable
3-4
OA Rounds
2y 9m
To Grant
90%
With Interview

Examiner Intelligence

Grants 73% — above average
73%
Career Allow Rate
888 granted / 1216 resolved
+8.0% vs TC avg
Strong +17% interview lift
Without
With
+16.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
39 currently pending
Career history
1255
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
31.3%
-8.7% vs TC avg
§102
21.0%
-19.0% vs TC avg
§112
34.4%
-5.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1216 resolved cases

Office Action

§112 §DP
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 . Claim Rejections - 35 USC § 112 Claim 31-34 and 38 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 pre-AIA the applicant regards as the invention. In claims 31 and 32, there is no express antecedent basis for the “acrylic polymers”. That is, there is no indication that said acrylic polymers define any of the block copolymers, core-shell particulate polymers or semi-compatible polymers recited in claim 24. In claims 31 and 34, there is no express antecedent basis for the “polymers selected from polymers of olefins with acrylates, copolymers of butadiene with acrylonitrile, copolymers of butadiene with methacrylates or copolymers of butadiene with other rubbers, and polysiloxane”. That is, there is no indication that said polymers define any of the block copolymers, core-shell particulate polymers or semi-compatible polymers recited in claim 24. In claim 31, the “or” (line 10) before the recitation of the last polymer member is not consistent with the “and” (lines 5 and 7) used before the recitations of the last polymer members. In claim 31, it is unclear whether the “polysiloxane” is a member of the antecedently-recited “polymers” (line 9). Response to Arguments Applicant’s arguments and terminal disclaimers filed March 04, 2026 have been fully considered and are persuasive in overcoming the previously-set forth 35 USC 112 and nonstatutory double patenting rejections. Allowable Subject Matter Claims 24-30, 35-37 and 39-51 are allowed. The presently claimed subject matter is deemed allowable over the closest prior art of record, US 4,696,973 (Kamata), in that Kamata fails to disclose, teach or provide any motivation or guidance for using a copolymer having partial insolubility in acetone such that it includes an insoluble fraction. Accordingly, claims 24-30, 35-37 and 39-51 are deemed allowable over the prior art of record. Conclusion 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 Ana L Woodward whose telephone number is (571)272-1082. The examiner can normally be reached on M-F 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, Heidi Kelley can be reached on 571-270-1831. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see https://ppair-my.uspto.gov/pair/PrivatePair. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /ANA L. WOODWARD/Primary Examiner, Art Unit 1765
Read full office action

Prosecution Timeline

Jun 25, 2024
Application Filed
Aug 29, 2025
Non-Final Rejection — §112, §DP
Mar 04, 2026
Response Filed
Mar 24, 2026
Final Rejection — §112, §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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Patent 12577399
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Patent 12577367
THERMOPLASTIC COMPOSITION, CONSOLIDATED LAMINATE STRUCTURE, AND METHOD FOR MANUFACTURING THEREOF
2y 5m to grant Granted Mar 17, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
73%
Grant Probability
90%
With Interview (+16.6%)
2y 9m
Median Time to Grant
Moderate
PTA Risk
Based on 1216 resolved cases by this examiner. Grant probability derived from career allow rate.

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