Last updated: July 11, 2026

Application No. 19/322,396

Untitled Application

Unknown

Filed

3600

Priority

Sep 27, 2024 — provisional 63/699,972

Examiner

LEFF, ANGELA MARIE DITRAN

Art Unit

3674

Tech Center

Chevron U.S.A. Inc.

Assignee

Chevron Corporation

OA Round

1 (Non-Final)

Interview Optional

— +13.2% interview lift. Interview lift (+13.2%) is below the 15.0% threshold. A written response is recommended.

Based on 1034 resolved cases, 2023–2026

Examiner Intelligence

LEFF, ANGELA MARIE DITRAN View full profile →

Grants 70% — above average

Career Allowance Rate

722 granted / 1034 resolved

+9.8% vs TC avg

Moderate +13% lift

Without

With

+13.2%

Interview Lift

resolved cases with interview

Typical timeline

2y 10m

Avg Prosecution

44 currently pending

Career history

1074

Total Applications

across all art units

Statute-Specific Performance

§101

0.6%

-39.4% vs TC avg

§103

67.3%

+27.3% vs TC avg

§102

7.2%

-32.8% vs TC avg

§112

8.2%

-31.8% vs TC avg

Black line = Tech Center average estimate • Based on career data from 1034 resolved cases

Prosecution Timeline

3600

Application Filed

Precedent Cases

Applications granted by this same examiner with similar technology

18/675,698

Patent 12674380

HYDRAULIC FRACTURING PROCESSES FOR SEQUENTIALLY INTRODUCING DIFFERRING PROPPANT-CONTAINING FRACTURING FLUIDS INTO SUBTERRANEAN FORMATIONS

2y 1m to grant Granted Jul 07, 2026

18/342,417

Patent 12644375

Quantifying Zonal Flow in Multi-lateral Wells via Taggants of Fluids

2y 11m to grant Granted Jun 02, 2026

18/953,826

Patent 12644377

METHOD OF USING NON-MAGNETIC SOLID TRACERS

1y 6m to grant Granted Jun 02, 2026

18/626,253

Patent 12637931

METHOD FOR GENERATING CO2 IN SITU FOR OILFIELD APPLICATIONS USING PROPYLENE CARBONATE

2y 1m to grant Granted May 26, 2026

18/282,165

Patent 12629792

POLISHING PAD AND METHOD FOR PRODUCING POLISHED PRODUCT

2y 8m to grant Granted May 19, 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

70%

Grant Probability

83%

With Interview (+13.2%)

2y 10m

Median Time to Grant

Low

PTA Risk

Based on 1034 resolved cases by this examiner. Grant probability derived from career allowance rate.