Last updated: July 17, 2026

Application No. 18/640,211

BOTTOMING CYCLE FOR POWER GENERATION AND ENGINE THERMAL MANAGEMENT

Non-Final OA

Filed

Apr 19, 2024

Examiner

HARRINGTON, ALYSON JOAN

Art Unit

3741

Tech Center

3700 — Mechanical Engineering & Manufacturing

Assignee

RTX Corporation

OA Round

2 (Non-Final)

Interview Optional

— +64.2% interview lift. Examiner has a relatively high allowance rate (75%); +64.2% interview lift. A written response may suffice.

Based on 190 resolved cases, 2023–2026

Examiner Intelligence

HARRINGTON, ALYSON JOAN View full profile →

Grants 75% — above average

Career Allowance Rate

142 granted / 190 resolved

+4.7% vs TC avg

Strong +64% interview lift

Without

With

+64.2%

Interview Lift

resolved cases with interview

Typical timeline

2y 8m

Avg Prosecution

20 currently pending

Career history

225

Total Applications

across all art units

Statute-Specific Performance

§103

87.3%

+47.3% vs TC avg

§102

8.5%

-31.5% vs TC avg

§112

3.6%

-36.4% vs TC avg

Black line = Tech Center average estimate • Based on career data from 190 resolved cases

Prosecution Timeline

Apr 19, 2024

Application Filed

Apr 07, 2025

Non-Final Rejection mailed

Jul 07, 2025

Response Filed

Oct 07, 2025

Final Rejection mailed

Dec 08, 2025

Response after Non-Final Action

Apr 15, 2026

Response after Non-Final Action

Precedent Cases

Applications granted by this same examiner with similar technology

18/602,880

Patent 12590560

VANE HEATING SYSTEM AND METHOD

2y 0m to grant Granted Mar 31, 2026

18/362,341

Patent 12571351

GAS TURBINE ENGINE DEFINING A ROTOR CAVITY

2y 7m to grant Granted Mar 10, 2026

18/967,923

Patent 12504171

PREMIXER FOR A COMBUSTOR

1y 0m to grant Granted Dec 23, 2025

18/625,743

Patent 12486784

TURBINE OVERSPEED PROTECTION

1y 8m to grant Granted Dec 02, 2025

18/624,851

Patent 12480447

REAL-TIME OPTICAL COKING SENSOR

1y 7m to grant Granted Nov 25, 2025

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

2-3

Expected OA Rounds

75%

Grant Probability

99%

With Interview (+64.2%)

2y 8m (~5m remaining)

Median Time to Grant

Moderate

PTA Risk

Based on 190 resolved cases by this examiner. Grant probability derived from career allowance rate.