Prosecution Insights
Last updated: July 05, 2026
Application No. 18/280,071

REDUCING AGENT, GAS PRODUCTION METHOD, AND METHOD FOR INCREASING CONVERSION EFFICIENCY

Non-Final OA §112
Filed
Sep 01, 2023
Priority
Mar 04, 2021 — JP 2021-034850 +1 more
Examiner
DAVIS, SHENG HAN
Art Unit
1732
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Sekisui Chemical Co., Ltd.
OA Round
1 (Non-Final)
66%
Grant Probability
Favorable
1-2
OA Rounds
4m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 66% — above average
66%
Career Allowance Rate
715 granted / 1081 resolved
+1.1% vs TC avg
Strong +34% interview lift
Without
With
+34.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
63 currently pending
Career history
1142
Total Applications
across all art units

Statute-Specific Performance

§103
95.1%
+55.1% vs TC avg
§102
0.9%
-39.1% vs TC avg
§112
2.7%
-37.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1081 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 Applicant’s election of Group I in the reply filed on 3/24/26 is acknowledged. Because applicant did not distinctly and specifically point out the supposed errors in the restriction requirement, the election has been treated as an election without traverse (MPEP § 818.01(a)). Claim Objections Claims 1-12, 15-20 are objected to because of the following informalities: Claim 1, line 4 “the support” should be amended to “the granular support” and “has oxygen” should be amended to “has an oxygen”. 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 19 is 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 19, line 2 “the oxidized reducing agent” lacks antecedent basis. REASONS FOR ALLOWANCE The following is an examiner’s statement of reasons for allowance: Tatsumi (US Pub.: 2010/0196761). Tatsumi describes a transition metal-based granule that has a spherical particle size and porosity (para. 23). The transition metal granule is used to support a lithium-containing composite oxide (para. 23). The angle of repose of the transition metal support is at 60° or less (para. 24 (5)). As to the oxygen carrier feature, the specification of this application states that the oxygen carrier is a compound which has oxygen ion conductivity and can cause reversible oxygen vacancies and is a compound in which oxygen is deficient due to its reduction (published specification, para. 33). Tatsumi employs a lithium composite oxide to the catalyst (see para. 2). Lithium and lithium oxides, according to para. 2, do not promote oxygen ion conductivity. Any comments considered necessary by applicant must be submitted no later than the payment of the issue fee and, to avoid processing delays, should preferably accompany the issue fee. Such submissions should be clearly labeled “Comments on Statement of Reasons for Allowance.” Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to SHENG HAN DAVIS whose telephone number is (571)270-5823. The examiner can normally be reached 9-5:30. 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, Fung Coris can be reached at 571-270-5713. 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. /SHENG H DAVIS/Primary Examiner, Art Unit 1732 May 28, 2026
Read full office action

Prosecution Timeline

Sep 01, 2023
Application Filed
Jun 03, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12668489
DUAL PRESSURE PLANT FOR THE PRODUCTION OF NITRIC ACID AND METHOD FOR OPERATING SAME
3y 4m to grant Granted Jun 30, 2026
Patent 12667821
PARTICULATE POROUS INORGANIC MATERIAL BASED ON A LEAD VANADATE OR PHOSPHOVANADATE, USEFUL FOR CAPTURING AND CONDITIONING GASEOUS IODINE
3y 6m to grant Granted Jun 30, 2026
Patent 12667822
STRUCTURED POWDERS FOR CARBON DIOXIDE CAPTURE
12m to grant Granted Jun 30, 2026
Patent 12662402
CREATION OF AN IRON PRODUCT FOR WASTEWATER TREATMENT
3y 8m to grant Granted Jun 23, 2026
Patent 12662374
LIQUID FORMULATION FOR HYDROGEN STORAGE
3y 7m to grant Granted Jun 23, 2026
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
66%
Grant Probability
99%
With Interview (+34.5%)
3y 2m (~4m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1081 resolved cases by this examiner. Grant probability derived from career allowance rate.

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