Prosecution Insights
Last updated: April 19, 2026
Application No. 18/395,994

Device for thermal generation of carbon monoxide and/or carbon dioxide

Final Rejection §102
Filed
Dec 26, 2023
Examiner
TILLMAN, JR, REGINALD S
Art Unit
3641
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Anasphere, Inc.
OA Round
2 (Final)
78%
Grant Probability
Favorable
3-4
OA Rounds
2y 0m
To Grant
89%
With Interview

Examiner Intelligence

Grants 78% — above average
78%
Career Allow Rate
1065 granted / 1367 resolved
+25.9% vs TC avg
Moderate +11% lift
Without
With
+11.0%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 0m
Avg Prosecution
33 currently pending
Career history
1400
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
32.1%
-7.9% vs TC avg
§102
39.1%
-0.9% vs TC avg
§112
20.9%
-19.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1367 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 . Election/Restrictions Applicant’s election without traverse of Group IV (claims 25-33 and 43) in the reply filed on 5-27-25 is acknowledged. Claims 1-24 and 34-42 withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to nonelected inventions, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 5-27-25. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 25, 26, 32, and 33 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Ludwig (US 5,551,725). Ludwig (Fig 1) discloses a gas generator device, comprising: a heat-generating composition (24); a gas-generating composition (20) comprising an oxalate salt (c. 7, l. 35; “ammonium oxalate”); and at least one separator (30), wherein the heat-generating composition is proximate to a first surface of the at least one separator and the gas-generating composition is proximate to a second surface of the at least one separator. Igniter (22). Claim(s) 25, 26, 29, 32, 33, and 43 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by (GB 5013872 A), hereinafter (“GB”). GB (Fig 1) discloses a gas generator device, comprising: a heat-generating composition (7); a gas-generating composition (9) comprising an oxalate salt (see pg 2, l. 60-70); and at least one separator (5), wherein the heat-generating composition is proximate to a first surface of the at least one separator and the gas-generating composition is proximate to a second surface of the at least one separator. (See pg 2, l. 115-120 regarding heat generating composition being thermite). Allowable Subject Matter Claims 27, 28, 30, and 31 objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to REGINALD S TILLMAN, JR whose telephone number is (571)270-7010. The examiner can normally be reached M-F 830-530. 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, Troy Chambers can be reached at 571-272-6874. 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. /REGINALD S TILLMAN, JR/Primary Examiner, Art Unit 3641
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Prosecution Timeline

Dec 26, 2023
Application Filed
Aug 21, 2025
Non-Final Rejection — §102
Nov 25, 2025
Response Filed
Dec 17, 2025
Final Rejection — §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
78%
Grant Probability
89%
With Interview (+11.0%)
2y 0m
Median Time to Grant
Moderate
PTA Risk
Based on 1367 resolved cases by this examiner. Grant probability derived from career allow rate.

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