Last updated: April 24, 2026

Application No. 18/902,852

Untitled Application

Unknown

Filed

3700

Examiner

SEBASCO CHENG, STEPHANIE

Art Unit

3741

Tech Center

Pratt & Whitney Canada Corp.

Assignee

Pratt & Whitney Canada Corp.

OA Round

2 (Non-Final)

Interview Optional

— +70.2% interview lift. This examiner has a relatively high allow rate; a written response may suffice.

Based on 308 resolved cases, 2023–2026

Examiner Intelligence

SEBASCO CHENG, STEPHANIE View full profile →

Grants 58% of resolved cases

Career Allow Rate

178 granted / 308 resolved

-2.2% vs TC avg

Strong +70% interview lift

Without

With

+70.2%

Interview Lift

resolved cases with interview

Typical timeline

3y 0m

Avg Prosecution

43 currently pending

Career history

351

Total Applications

across all art units

Statute-Specific Performance

§101

1.2%

-38.8% vs TC avg

§103

42.7%

+2.7% vs TC avg

§102

17.9%

-22.1% vs TC avg

§112

32.5%

-7.5% vs TC avg

Black line = Tech Center average estimate • Based on career data from 308 resolved cases

Prosecution Timeline

3700

Application Filed

Aug 18, 2025

Applicant Interview (Telephonic)

Aug 22, 2025

Examiner Interview Summary

Sep 12, 2025

Non-Final Rejection

Dec 16, 2025

Response Filed

Feb 12, 2026

Final Rejection (current)

Precedent Cases

Applications granted by this same examiner with similar technology

18/104,433

Patent 12590702

GAS TURBINE ENGINE COMBUSTOR WITH A SET OF DILUTION PASSAGES

2y 5m to grant Granted Mar 31, 2026

18/144,576

Patent 12577914

METHODS AND SYSTEMS FOR STARTING HYDROGEN POWERED GAS GENERATORS

2y 5m to grant Granted Mar 17, 2026

19/055,689

Patent 12560329

NONPREMIXED, RICH, RELAX, LEAN COMBUSTOR

2y 5m to grant Granted Feb 24, 2026

18/108,372

Patent 12546250

STEAM TURBINE BYPASS FOR INCREASED WATER HEAT ABSORPTION CAPACITY STEAM INJECTED TURBINE ENGINE

2y 5m to grant Granted Feb 10, 2026

18/703,003

Patent 12534218

FUEL CONDITIONING SYSTEM FOR SUPPLYING AN AIRCRAFT TURBOMACHINE, AND METHOD OF SUPPLYING A TURBOMACHINE

2y 5m to grant Granted Jan 27, 2026

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

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.

Prosecution Projections

2-3

Expected OA Rounds

58%

Grant Probability

99%

With Interview (+70.2%)

3y 0m

Median Time to Grant

Moderate

PTA Risk

Based on 308 resolved cases by this examiner. Grant probability derived from career allow rate.