Prosecution Insights
Last updated: May 29, 2026
Application No. 18/694,147

OLEFIN PRODUCTION METHOD

Final Rejection §102
Filed
Mar 21, 2024
Priority
Sep 24, 2021 — JP 2021-155936 +1 more
Examiner
SINGH, PREM C
Art Unit
1771
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Sumitomo Chemical Co., Ltd.
OA Round
2 (Final)
59%
Grant Probability
Moderate
3-4
OA Rounds
1y 10m
Est. Remaining
92%
With Interview

Examiner Intelligence

Grants 59% of resolved cases
59%
Career Allowance Rate
210 granted / 356 resolved
-6.0% vs TC avg
Strong +33% interview lift
Without
With
+33.1%
Interview Lift
resolved cases with interview
Typical timeline
4y 0m
Avg Prosecution
6 currently pending
Career history
360
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
84.0%
+44.0% vs TC avg
§102
0.8%
-39.2% vs TC avg
§112
0.5%
-39.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 356 resolved cases

Office Action

§102
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 . Response to Arguments Applicant's arguments filed 04/11/2026 have been fully considered but they are not persuasive. The Applicant argues, “Yasuharu Kanda, Yoshio Uemichi, Nozomi Ishihara, and Takehiro Nakasuji are named inventors on the present application. Yoshio Uemichi, Yasuharu Kanda, and Yuki Okamoto are named inventors on Uemichi. As stated in the Declaration under 37 C.F.R. § 1.130 submitted herewith, to the extent that Uemichi discloses the subject matter cited in the rejection under 35 U.S.C. § 103, Uemichi discloses the work of Yoshio Uemichi and/or Yasuharu Kanda, but not that of Yuki Okamoto. Thus, the subject matter cited in Uemichi was "made by the inventor or joint inventor" of the present application and was disclosed "1 year or less before the effective filing date" of the present application. Applicant submits herewith the Declaration of Yasuharu Kanda under 37 C.F.R. §1.130 in support of this position. See Declaration, 11 2-4. Accordingly, Uemichi is disqualified as prior art against the present application under 35 U.S.C. § 102(b)(1)(A)”. The Applicant’s argument is not persuasive. Applicant’s affidavit filed: 04/11/2026 states that the disclosure relied upon in Uemichi was the work of Kanda and Uemichi, who are listed as inventors on the current application, and not the work of Okamoto, who is not listed as an inventor on the current application. However, the affidavit does not contain a "reasonable explanation of the presence of additional authors" (Okamoto) on the Uemichi reference (emphasis added). See MPEP 2155.01 for details. Thus, the rejection of Claim(s) 1-13 as being unpatentable over Uemichi et al (WO 2021166854 A1) and Ramamurthy et al (WO 2018/069794 A1) is maintained. Conclusion 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 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 PREM C SINGH whose telephone number is (571)272-6381. The examiner can normally be reached Monday-Friday 6:00 AM to 3:00 PM (Eastern). 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, Patricia Mallari can be reached at 571-272-4729 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. /PREM C SINGH/ Supervisory Patent Examiner, Art Unit 1771
Read full office action

Prosecution Timeline

Mar 21, 2024
Application Filed
Dec 12, 2025
Non-Final Rejection mailed — §102
Apr 11, 2026
Response Filed
Apr 29, 2026
Final Rejection mailed — §102 (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

3-4
Expected OA Rounds
59%
Grant Probability
92%
With Interview (+33.1%)
4y 0m (~1y 10m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 356 resolved cases by this examiner. Grant probability derived from career allowance rate.

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