Last updated: July 17, 2026

Application No. 19/299,239

EXHAUST GAS AFTERTREATMENT SYSTEM

Non-Final OA

Filed

Aug 13, 2025

Priority

Aug 14, 2019 — provisional 62/886,495 +3 more

Examiner

STANEK, KELSEY L

Art Unit

3741

Tech Center

3700 — Mechanical Engineering & Manufacturing

Assignee

Cummins Inc.

OA Round

1 (Non-Final)

Interview Optional

— +15.9% interview lift. Examiner has a relatively high allowance rate (81%); +15.9% interview lift. A written response may suffice.

Based on 646 resolved cases, 2023–2026

Examiner Intelligence

STANEK, KELSEY L View full profile →

Grants 81% — above average

Career Allowance Rate

521 granted / 646 resolved

+10.7% vs TC avg

Strong +16% interview lift

Without

With

+15.9%

Interview Lift

resolved cases with interview

Typical timeline

2y 5m

Avg Prosecution

20 currently pending

Career history

673

Total Applications

across all art units

Statute-Specific Performance

§101

1.5%

-38.5% vs TC avg

§103

69.4%

+29.4% vs TC avg

§102

10.6%

-29.4% vs TC avg

§112

17.2%

-22.8% vs TC avg

Black line = Tech Center average estimate • Based on career data from 646 resolved cases

Prosecution Timeline

Aug 13, 2025

Application Filed

Apr 21, 2026

Non-Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

18/751,472

Patent 12663011

TEMPERATURE RANGE EXTENSION FOR ELECTRIC COMPRESSOR

1y 12m to grant Granted Jun 23, 2026

18/749,223

Patent 12655780

System for Cooling Catalyzed Combustion Exhaust Gas of Hydrocarbon Fueled Internal Combustion Engines Used in Small Power Equipment and Power Tools

1y 12m to grant Granted Jun 16, 2026

18/648,416

Patent 12644471

ELECTRIC COMPRESSOR ASSEMBLY

2y 1m to grant Granted Jun 02, 2026

18/841,132

Patent 12637965

COMPLIANCE SPRING MOUNTING METHOD AND ASSEMBLY

1y 9m to grant Granted May 26, 2026

17/968,258

Patent 12611503

SYSTEM AND METHOD FOR SEQUENTIAL DELIVERY OF THERAPEUTIC COMPOSITIONS

3y 6m to grant Granted Apr 28, 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

1-2

Expected OA Rounds

81%

Grant Probability

97%

With Interview (+15.9%)

2y 5m (~1y 6m remaining)

Median Time to Grant

Low

PTA Risk

Based on 646 resolved cases by this examiner. Grant probability derived from career allowance rate.