Prosecution Insights
Last updated: April 19, 2026
Application No. 17/439,727

THERMOPLASTIC ELASTOMER COMPOSITION AND MOLDED ARTICLE OF THE SAME

Non-Final OA §103
Filed
Sep 15, 2021
Examiner
LISTVOYB, GREGORY
Art Unit
1765
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Mitsui Chemicals Inc.
OA Round
5 (Non-Final)
67%
Grant Probability
Favorable
5-6
OA Rounds
3y 2m
To Grant
96%
With Interview

Examiner Intelligence

Grants 67% — above average
67%
Career Allow Rate
798 granted / 1195 resolved
+1.8% vs TC avg
Strong +30% interview lift
Without
With
+29.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
39 currently pending
Career history
1234
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
57.7%
+17.7% vs TC avg
§102
20.4%
-19.6% vs TC avg
§112
6.6%
-33.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1195 resolved cases

Office Action

§103
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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 1/15/2026 has been entered. The previous prior art rejection under Tohi (US 20160280819) in view of Ichino (WO 2016152711) maintained. 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, 3-8 and 17-19 are rejected under 35 U.S.C. 103 as being unpatentable over Tohi (US 20160280819) in view of Ichino (WO 2016152711), both cited in previous Office Action. New claim 19 is noted. Syndiotactic polypropylene (7 AA) possesses MFR values within the range of 0.1 to 100 g/10 min (see Fig. 6). The rejection can be found in the NON-FINAL office action mailed 4/24/2025 and is herein incorporated by reference. Response to Arguments Applicant's arguments filed 1/15/2026 have been fully considered but they are not persuasive. Applicant submits that Tohi does not teach that the propylene- ethylene copolymer (7B-2) can be a propylene/ethylene/nonconjugated polyene copolymer and the propylene a- olefin copolymer (B3) can be a propylene/a-olefin/nonconjugated polyene copolymer. This is incorrect. Tohi teaches that a propylene-based copolymer (B1) contains a propylene component in an amount of 95 to 51 mol %, contains an α-olefin component, which is at least one selected from ethylene, 1-butene, 4-methylpentene-1,1-hexene, 1-octene and 1-decene, in an amount of 5 to 49 mol %, and contains a polyene component, which is at least one selected from conjugated or non-conjugated dienes (see 0098). Applicant argues that an artisan would not be motivated to apply the molar ratio of an ethylene-derived structural unit (e) and an a-olefin-derived structural unit (o) of the ethylene-a-olefin random copolymer (CO) and the ethylene-a-olefin random copolymer (7C). Examiner disagrees. Tohi clearly teaches that constituent units derived from ethylene are contained in an amount of 60 to 95 mol %, and constituent units derived from an α-olefin having 3 to 20 carbon atoms other than ethylene are contained in an amount of 5 to 40 mol % (provided that the sum of amounts of the constituent units derived from ethylene and the constituent units derived from the α-olefin having 3 to 20 carbon atoms is 100 mol %) (see 0182). Applicant argues that the ethylene/a-olefin/nonconjugated polyene copolymer (A) of claim 1 is not equivalent to Tohi’s non-crosslinked or partially crosslinked olefin-based thermoplastic elastomer (C2), because they have a significant difference in tensile modulus values. Examiner disagrees. Applicant does not provide any tensile modulus values in order to compare it to Tohi’s data, which discloses tensile modulus values within the range of 1 MPa to 400 MPa (see 0149). Any inquiry concerning this communication or earlier communications from the examiner should be directed to GREGORY LISTVOYB whose telephone number is (571)272-6105. The examiner can normally be reached 9am-5pm EST M-F. 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 Riviere Kelley can be reached at (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 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. GL /GREGORY LISTVOYB/Primary Examiner, Art Unit 1765
Read full office action

Prosecution Timeline

Sep 15, 2021
Application Filed
Jul 26, 2024
Non-Final Rejection — §103
Oct 24, 2024
Response Filed
Nov 13, 2024
Final Rejection — §103
Feb 18, 2025
Response after Non-Final Action
Mar 18, 2025
Request for Continued Examination
Mar 20, 2025
Response after Non-Final Action
Apr 21, 2025
Non-Final Rejection — §103
Jul 24, 2025
Response Filed
Sep 11, 2025
Final Rejection — §103
Dec 12, 2025
Response after Non-Final Action
Jan 15, 2026
Request for Continued Examination
Jan 16, 2026
Response after Non-Final Action
Feb 10, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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2y 5m to grant Granted Mar 31, 2026
Patent 12590184
POLYIMIDE RESIN MOLDED BODY AND PRODUCTION METHOD FOR SAME
2y 5m to grant Granted Mar 31, 2026
Patent 12583987
SURFACE MODIFYING COMPOSITION, MODIFIED PRODUCT, AND METHOD OF PRODUCING MODIFIED PRODUCT
2y 5m to grant Granted Mar 24, 2026
Patent 12583974
POLYAMIDE-IMIDE-BASED FILM, PREPARATION METHOD THEREOF, AND COVER WINDOW AND DISPLAY DEVICE COMPRISING THE SAME
2y 5m to grant Granted Mar 24, 2026
Patent 12583983
POLYIMIDE FILM HAVING HIGH DIMENSIONAL STABILITY, AND METHOD FOR MANUFACTURING SAME
2y 5m to grant Granted Mar 24, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

5-6
Expected OA Rounds
67%
Grant Probability
96%
With Interview (+29.7%)
3y 2m
Median Time to Grant
High
PTA Risk
Based on 1195 resolved cases by this examiner. Grant probability derived from career allow rate.

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