Last updated: October 02, 2026

Application No. 19/041,520

GAS TURBINE ENGINE HAVING A HEAT EXCHANGER LOCATED IN AN ANNULAR DUCT

Non-Final OA

Filed

Jan 30, 2025

Priority

Jan 27, 2023 — CIP of 11/927,134 +2 more

Examiner

KIM, CRAIG SANG

Art Unit

3741

Tech Center

3700 — Mechanical Engineering & Manufacturing

Assignee

General Electric Company

OA Round

3 (Non-Final)

Interview Optional

— +9.8% interview lift. Interview lift (+9.8%) is below the 15.0% threshold. A written response is recommended.

Based on 787 resolved cases, 2023–2026

Examiner Intelligence

KIM, CRAIG SANG View full profile →

Grants 86% — above average

Career Allowance Rate

679 granted / 787 resolved

+16.3% vs TC avg

Moderate +10% lift

Without

With

+9.8%

Interview Lift

resolved cases with interview

Typical timeline

2y 12m

Avg Prosecution

23 currently pending

Career history

822

Total Applications

across all art units

Statute-Specific Performance

§101

0.8%

-39.2% vs TC avg

§103

44.6%

+4.6% vs TC avg

§102

29.1%

-10.9% vs TC avg

§112

20.1%

-19.9% vs TC avg

Black line = Tech Center average estimate • Based on career data from 787 resolved cases

Prosecution Timeline

Jan 30, 2025

Application Filed

May 16, 2025

Non-Final Rejection mailed

Sep 16, 2025

Response Filed

Nov 28, 2025

Final Rejection mailed

Jan 28, 2026

Response after Non-Final Action

Jun 05, 2026

Request for Continued Examination

Jun 17, 2026

Response after Non-Final Action

Jul 14, 2026

Non-Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

18/413,401

Patent 12741229

FOG DISTRIBUTION SYSTEMS AND METHODS

2y 8m to grant Granted Sep 22, 2026

18/263,398

Patent 12736216

BURNER FOR LIQUID FUEL AND METHOD FOR OPERATING SUCH BURNER

3y 1m to grant Granted Sep 15, 2026

18/678,638

Patent 12729648

AXIAL FLOW ANGLED CONDENSER ARRANGEMENT FOR AN AIRCRAFT PROPULSION SYSTEM

2y 3m to grant Granted Sep 08, 2026

18/714,463

Patent 12729856

COMBUSTION DEVICE COMPRISING ORTHOGONALLY ARRANGED CHANNELS

1y 10m to grant Granted Sep 08, 2026

18/618,462

Patent 12716381

COMPACT CORE ARRANGEMENT FOR HIGH BYPASS RATIO GAS TURBINE ENGINE ARCHITECTURE

2y 5m to grant Granted Aug 25, 2026

Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.

Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

3-4

Expected OA Rounds

86%

Grant Probability

96%

With Interview (+9.8%)

2y 12m (~1y 3m remaining)

Median Time to Grant

High

PTA Risk

Based on 787 resolved cases by this examiner. Grant probability derived from career allowance rate.