Office Action Predictor
Last updated: April 15, 2026
Application No. 18/222,755

FURNACE FOR IMPLEMENTING AN ENDOTHERMIC PROCESS

Final Rejection §102§112
Filed
Jul 17, 2023
Examiner
SHIRSAT, VIVEK K
Art Unit
3762
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
L'Air Liquide, Société Anonyme Pour L'Etude Et L'Exploitation Des Procédés Georges Claude
OA Round
2 (Final)
74%
Grant Probability
Favorable
3-4
OA Rounds
2y 11m
To Grant
99%
With Interview

Examiner Intelligence

Grants 74% — above average
74%
Career Allow Rate
781 granted / 1061 resolved
+3.6% vs TC avg
Strong +30% interview lift
Without
With
+29.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
60 currently pending
Career history
1121
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
45.6%
+5.6% vs TC avg
§102
25.3%
-14.7% vs TC avg
§112
23.3%
-16.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1061 resolved cases

Office Action

§102 §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 . Response to Arguments The applicant’s amendments to claim 1 overcome the 35 U.S.C 102(a)(1) and 35 U.S.C 112(b) rejections presented in the Non-Final rejection dated 08/26/2025, therefore the rejections are withdrawn. However, the 35 U.S.C 112(b) rejection applied to claim 1 was also applied to claims 6 and 8 because they include similarly indefinite language and those rejections have not been addressed in either the arguments or amendments. For these reasons the 35 U.S.C 112(b) rejections of claims 6 and 8 are maintained. Additionally, the remarks refer to claim 8 as dependent on claim 1, however, claim 8 is an independent claim and neither the arguments nor the amendments address the 35 U.S.C 102(a)(1) rejection applied to claim 8, therefore the rejection is maintained. 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 6-8 are 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. Claims 6 and 8 require “the nozzle being oriented along an axis of the nozzle”, because it is unclear how a nozzle cannot be oriented in some way along its own axis it is unclear what the applicant intends with this limitation. 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) 8 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Beck (US 1,911,177). With respect to claim 8 Beck discloses a method for revamping a furnace for implementing an endothermic process, the furnace comprising: a combustion chamber delimited by a wall [reference character 5], at least one tubular reactor [see annotated Fig. below] positioned in the combustion chamber, at least one burner [see annotated Fig. below] arranged in the combustion chamber configured to supply the tubular reactor with the heat required for the endothermic process, the burner comprising at least one nozzle for discharging a flame, the nozzle being oriented along an axis of the nozzle1, wherein the chamber has, over at least part of an inner surface of the wall, a convex inner profile [see annotated Fig. below] curved in a direction of the axis of the nozzle, the profile being adjacent to said burner and facing the axis. PNG media_image1.png 417 1203 media_image1.png Greyscale Allowable Subject Matter Claims 1-3 and 5 are allowed. 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 VIVEK K SHIRSAT whose telephone number is (571)272-3722. The examiner can normally be reached M-F 9:00AM-5:20AM. 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, Steven B McAllister can be reached at 571-272-6785. 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. /VIVEK K SHIRSAT/Primary Examiner, Art Unit 3762 1 See 112(b) rejection above.
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Prosecution Timeline

Jul 17, 2023
Application Filed
Aug 22, 2025
Non-Final Rejection — §102, §112
Nov 26, 2025
Response Filed
Jan 23, 2026
Final Rejection — §102, §112
Mar 31, 2026
Response after Non-Final Action

Precedent Cases

Applications granted by this same examiner with similar technology

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2y 5m to grant Granted Apr 07, 2026
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Patent 12590723
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2y 5m to grant Granted Mar 31, 2026
Patent 12590703
ELECTRONIC CLOSED-LOOP CONTROL DEVICE FOR FIREPLACES COMPRISING A LOWER COMBUSTION SYSTEM
2y 5m to grant Granted Mar 31, 2026
Patent 12590698
MULTI-TUBE BURNER SYSTEM FOR EFFICIENT MIXING OF FUEL AND AIR FOR COMBUSTION
2y 5m to grant Granted Mar 31, 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
74%
Grant Probability
99%
With Interview (+29.9%)
2y 11m
Median Time to Grant
Moderate
PTA Risk
Based on 1061 resolved cases by this examiner. Grant probability derived from career allow rate.

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