Prosecution Insights
Last updated: August 17, 2026
Application No. 18/062,767

LOW NOX GAS BURNER WITH COOLED FLUE GAS RECYCLE

Final Rejection §102
Filed
Dec 07, 2022
Priority
Dec 31, 2021 — provisional 63/266,306
Examiner
SHIRSAT, VIVEK K
Art Unit
3762
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Honeywell International Inc.
OA Round
4 (Final)
74%
Grant Probability
Favorable
5-6
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 74% — above average
74%
Career Allowance Rate
817 granted / 1102 resolved
+4.1% vs TC avg
Strong +28% interview lift
Without
With
+28.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
47 currently pending
Career history
1139
Total Applications
across all art units

Statute-Specific Performance

§101
1.0%
-39.0% vs TC avg
§103
48.3%
+8.3% vs TC avg
§102
21.8%
-18.2% vs TC avg
§112
24.0%
-16.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1102 resolved cases

Office Action

§102
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 claims 1 and 10 overcome the rejection applied in the Non-Final rejection dated 02/24/2026. 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) 21 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Rampley et. al (US 4,995,807). With respect to claim 21 Rampley discloses a burner configured to receive a fuel gas and a combustion air which react and produce a flame and a flue gas in a combustion zone, the burner comprising: a duct [reference character 134] configured to remove a portion of the flue gas from a radiant section of the combustion chamber, comprising a combustion zone [reference character 120] with the flame [reference character 126], as a recycled flue gas, a fan [reference character 136] configured to draw the recycled flue gas out of the combustion zone, and wherein the recycled flue gas is mixed, upstream of the combustion zone, with the fuel gas and the combustion air to form a mixture injected into the burner [with fuel in mixing chamber 142 and with air in firing head 170]. Allowable Subject Matter Claims 1-5, 7-8, 10-15, and 17-20 are allowed. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). 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
Read full office action

Prosecution Timeline

Show 2 earlier events
Jun 24, 2025
Response Filed
Oct 10, 2025
Final Rejection mailed — §102
Dec 10, 2025
Response after Non-Final Action
Jan 09, 2026
Request for Continued Examination
Feb 17, 2026
Response after Non-Final Action
Feb 24, 2026
Non-Final Rejection mailed — §102
May 19, 2026
Response Filed
Jun 09, 2026
Final Rejection mailed — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12702253
COOKING DEVICE AND COMPONENTS THEREOF
5y 6m to grant Granted Aug 11, 2026
Patent 12704255
SYSTEMS, APPARATUSES, METHODS, AND COMPUTER PROGRAM PRODUCTS FOR SEGREGATION OF FLARING AND VENTING VOLUMES USING MACHINE LEARNING APPROACHES
3y 5m to grant Granted Aug 11, 2026
Patent 12704257
FURNACE FOR IMPLEMENTING AN ENDOTHERMIC PROCESS
3y 0m to grant Granted Aug 11, 2026
Patent 12704253
BURNER FOR AN AIRCRAFT GAS TURBINE ENGINE
3y 0m to grant Granted Aug 11, 2026
Patent 12691609
Heating Apparatus and Anti-ignition Re-useable Bladder
4y 10m to grant Granted Jul 28, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

5-6
Expected OA Rounds
74%
Grant Probability
99%
With Interview (+28.1%)
2y 11m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 1102 resolved cases by this examiner. Grant probability derived from career allowance rate.

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