Prosecution Insights
Last updated: October 25, 2026
Application No. 18/019,560

GAS PRODUCTION DEVICE, GAS PRODUCTION SYSTEM, AND GAS PRODUCTION METHOD

Final Rejection §DOUBLEPATENT
Filed
Jul 03, 2023
Priority
Aug 04, 2020 — nonprovisional of PCT/JP2020/029821 +1 more
Examiner
HENDRICKSON, STUART L
Art Unit
1736
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Sekisui Chemical Co., Ltd.
OA Round
2 (Final)
72%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
80%
With Interview

Examiner Intelligence

Grants 72% — above average
72%
Career Allowance Rate
729 granted / 1007 resolved
+7.4% vs TC avg
Moderate +8% lift
Without
With
+8.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
35 currently pending
Career history
1043
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
43.5%
+3.5% vs TC avg
§102
15.2%
-24.8% vs TC avg
§112
27.4%
-12.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1007 resolved cases

Office Action

§DOUBLEPATENT
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 . The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. Double Patenting Claims 1-8, 10-16, 18-20 are provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-7, 9-13 of copending Application No. 18/019561 (reference application). Although the claims at issue are not identical, they are not patentably distinct from each other because they claim common subject matter; the switching conditions are a process consideration, not an apparatus one. This is a provisional nonstatutory double patenting rejection because the patentably indistinct claims have not in fact been patented. Claims 1-8, 10-16, 18-20 are provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-7 of copending Application No. 18/019554 (reference application). Although the claims at issue are not identical, they are not patentably distinct from each other because they claim common subject matter. See claim 3 of the copending case. This is a provisional nonstatutory double patenting rejection because the patentably indistinct claims have not in fact been patented. The copending case has been allowed but not patented. Claims 1-8, 10-16, 18-20 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-13 of US Patent 12582941 (formerly copending Application No. 17/277962). Although the claims at issue are not identical, they are not patentably distinct from each other because they claim common subject matter. Note that present clam 4 provides the initial gas feed of the patent application. Applicant's arguments filed 7/22/26 have been fully considered but they are not persuasive. The ‘962 application/’941 patent contemplates a heat exchanger (para 33 et seq) and in any event does not preclude the feature of claim 9 by virtue of ‘comprising’. Furthermore, the carrier has the capacity to accept heat. The same holds true with respect to the other applications. Note that a heat exchanger is capable of being operated to cool or heat (and actually does both simultaneously) the desired location and thus it is not relevant if in the process it is used to heat the reducing agent. 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 STUART L HENDRICKSON whose telephone number is (571)272-1351. The examiner can normally be reached on Monday-Friday from 9 to 5. If attempts to reach the examiner by telephone are unsuccessful, the examiner's supervisor, Anthony Zimmer, can be reached on 571-270-3591. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. /STUART L HENDRICKSON/Primary Examiner, Art Unit 1736
Read full office action

Prosecution Timeline

Jul 03, 2023
Application Filed
Jul 03, 2023
Response after Non-Final Action
Apr 23, 2026
Non-Final Rejection mailed — §DOUBLEPATENT
Jul 22, 2026
Response Filed
Oct 02, 2026
Final Rejection mailed — §DOUBLEPATENT (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12766483
REDUCED GRAPHENE OXIDE SCREEN
3y 10m to grant Granted Oct 20, 2026
Patent 12766484
LAYERED MULTI-METAL-OXIDE-BASED MAGNETIC BIOCHAR AND PREPARATION METHOD AND USE THEREOF
2y 10m to grant Granted Oct 20, 2026
Patent 12766494
ELECTRICALLY HEATED SUBSTRATES, ASSEMBLIES, SYSTEMS, AND PROCESSES FOR CATALYTIC, CHEMICAL, AND SORBENT APPLICATIONS
1y 1m to grant Granted Oct 20, 2026
Patent 12753079
METHOD FOR PREPARING POROUS CARBON STRUCTURE HAVING INCREASED SURFACE AREA AND TOTAL PORE VOLUME, AND POROUS CARBON STRUCTURE PREPARED USING SAME
3y 4m to grant Granted Oct 06, 2026
Patent 12752339
METHOD FOR PRODUCING Na CONTAINING OXIDE, AND Na CONTAINING OXIDE
2y 7m to grant Granted Oct 06, 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
72%
Grant Probability
80%
With Interview (+8.1%)
3y 1m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1007 resolved cases by this examiner. Grant probability derived from career allowance rate.

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