Prosecution Insights
Last updated: October 21, 2026
Application No. 17/980,263

MULTITUBE PILOT INJECTOR HAVING A FLAME ANCHOR FOR A GAS TUBINE ENGINE

Non-Final OA §112
Filed
Nov 03, 2022
Priority
Nov 03, 2021 — provisional 63/275,127
Examiner
KANG, EDWIN G
Art Unit
3741
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Power Systems Mfg LLC
OA Round
3 (Non-Final)
64%
Grant Probability
Moderate
3-4
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 64% of resolved cases
64%
Career Allowance Rate
218 granted / 340 resolved
-5.9% vs TC avg
Strong +67% interview lift
Without
With
+66.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
34 currently pending
Career history
402
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
50.7%
+10.7% vs TC avg
§102
19.0%
-21.0% vs TC avg
§112
28.2%
-11.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 340 resolved cases

Office Action

§112
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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 7/14/2026 has been entered. Claim Objections Claim 17, line 3, 6; claim 24, lines 3, 6 are objected to because of the following informalities: “the flow sleeve” should be - -the generally cylindrical flow sleeve- -. Appropriate correction is required. Claim 17, line 5; claim 24, lines 5 are objected to because of the following informalities: “the combustion liner” should be - -the generally cylindrical combustion liner - -. 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 11 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 11, lines 2-3 recite “the air/fuel mixing tubes” which renders the claim indefinite because it is unclear which of the following air/fuel mixing tubes are being referenced since there are air/fuel mixing tubes of the plurality of air/fuel mixing tubes, the radially outer subset of air/fuel mixing tubes, or the radially inner subset of air/fuel mixing tubes. Allowable Subject Matter Claim 1, 3-4, 6, 9-10, 12-17, 19-20, 22-24 are allowed. Claim 11 would be allowable if rewritten to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action and to include 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 EDWIN G KANG whose telephone number is (571)272-9814. The examiner can normally be reached Mon-Fri 8:00-5:00 PM EST. 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, Devon Kramer can be reached at (571) 272-7118. 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. /EDWIN KANG/Primary Examiner, Art Unit 3741
Read full office action

Prosecution Timeline

Show 8 earlier events
Mar 19, 2025
Examiner Interview (Telephonic)
Jul 08, 2025
Request for Continued Examination
Jul 11, 2025
Response after Non-Final Action
Nov 26, 2025
Request for Continued Examination
Dec 16, 2025
Response after Non-Final Action
Jul 14, 2026
Request for Continued Examination
Jul 20, 2026
Response after Non-Final Action
Oct 06, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12736223
LEAKAGE GAS EMISSION SYSTEM
2y 6m to grant Granted Sep 15, 2026
Patent 12723547
GAS TURBINE ENGINE
4y 6m to grant Granted Sep 01, 2026
Patent 12691196
AIR FRESHENER HOLDER
2y 2m to grant Granted Jul 28, 2026
Patent 12680498
BLEED-OFF ASSEMBLY INTAKE DEVICE FOR AN AIRCRAFT PROPULSION SYSTEM
2y 5m to grant Granted Jul 14, 2026
Patent 12674581
COMBUSTOR HEAD END SECTION WITH INTEGRATED COOLING SYSTEM
2y 6m to grant Granted Jul 07, 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
64%
Grant Probability
99%
With Interview (+66.6%)
3y 2m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 340 resolved cases by this examiner. Grant probability derived from career allowance rate.

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