Last updated: April 24, 2026

Application No. 19/322,920

Untitled Application

Unknown

Filed

3600

Examiner

LEFF, ANGELA MARIE DITRAN

Art Unit

3674

Tech Center

UNIVERSITY OF WYOMING

Assignee

UNIVERSITY OF WYOMING

OA Round

1 (Non-Final)

Interview Optional

— +13.1% interview lift. This examiner has a relatively high allow rate; a written response may suffice.

Based on 1029 resolved cases, 2023–2026

Examiner Intelligence

LEFF, ANGELA MARIE DITRAN View full profile →

Grants 70% — above average

Career Allow Rate

719 granted / 1029 resolved

+9.9% vs TC avg

Moderate +13% lift

Without

With

+13.1%

Interview Lift

resolved cases with interview

Typical timeline

2y 11m

Avg Prosecution

33 currently pending

Career history

1062

Total Applications

across all art units

Statute-Specific Performance

§101

1.3%

-38.7% vs TC avg

§103

40.3%

+0.3% vs TC avg

§102

20.0%

-20.0% vs TC avg

§112

27.2%

-12.8% vs TC avg

Black line = Tech Center average estimate • Based on career data from 1029 resolved cases

Prosecution Timeline

3600

Application Filed

Precedent Cases

Applications granted by this same examiner with similar technology

18/515,803

Patent 12606732

Enhanced Carbon Sequestration via Foam Cementing

2y 5m to grant Granted Apr 21, 2026

18/465,212

Patent 12600900

ACIDIZING COMPOSITIONS FOR IMPROVED FLUID PERFORMANCE

2y 5m to grant Granted Apr 14, 2026

18/213,737

Patent 12584058

DRILLING FLUID WITH SELF-ADJUSTED ALKALINITY

2y 5m to grant Granted Mar 24, 2026

18/461,578

Patent 12577867

TREATMENT OF SUBTERRANEAN FORMATIONS

2y 5m to grant Granted Mar 17, 2026

18/664,028

Patent 12571303

TIME DEPENDENT TRACER RELEASE IN STIMULATED GAS WELLS USING COMPOSITE PARTICLES MADE OF TWO DIFFERENT THERMOPLASTIC POLYESTER BLENDS OF VARIOUS RATIOS

2y 5m to grant Granted Mar 10, 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

1-2

Expected OA Rounds

70%

Grant Probability

83%

With Interview (+13.1%)

2y 11m

Median Time to Grant

Low

PTA Risk

Based on 1029 resolved cases by this examiner. Grant probability derived from career allow rate.