Last updated: July 17, 2026

Application No. 18/422,882

OPTIMIZATION OF PUMP RATES FOR HYDRAULIC FRACTURING

Non-Final OA

Filed

Jan 25, 2024

Examiner

EDWARDS, LOREN C

Art Unit

3746

Tech Center

3700 — Mechanical Engineering & Manufacturing

Assignee

Halliburton Energy Services Inc.

OA Round

1 (Non-Final)

Interview Optional

— +28.7% interview lift. Examiner has a relatively high allowance rate (82%); +28.7% interview lift. A written response may suffice.

Based on 670 resolved cases, 2023–2026

Examiner Intelligence

EDWARDS, LOREN C View full profile →

Grants 82% — above average

Career Allowance Rate

547 granted / 670 resolved

+11.6% vs TC avg

Strong +29% interview lift

Without

With

+28.7%

Interview Lift

resolved cases with interview

Typical timeline

2y 5m

Avg Prosecution

34 currently pending

Career history

703

Total Applications

across all art units

Statute-Specific Performance

§101

0.3%

-39.7% vs TC avg

§103

75.2%

+35.2% vs TC avg

§102

15.9%

-24.1% vs TC avg

§112

5.0%

-35.0% vs TC avg

Black line = Tech Center average estimate • Based on career data from 670 resolved cases

Prosecution Timeline

Jan 25, 2024

Application Filed

Apr 14, 2026

Non-Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

18/875,438

Patent 12680478

METHOD OF OPERATING A HEAT CYCLE SYSTEM, HEAT CYCLE SYSTEM AND METHOD OF MODIFYING A HEAT CYCLE SYSTEM

1y 7m to grant Granted Jul 14, 2026

19/105,793

Patent 12680490

SYSTEMS AND METHODS FOR CONTROLLING TAILPIPE EXHAUST EMISSIONS

1y 4m to grant Granted Jul 14, 2026

18/978,492

Patent 12674449

FLUID DELIVERY SYSTEMS PID AUTOTUNING

1y 6m to grant Granted Jul 07, 2026

19/061,564

Patent 12674415

LUBRICATION SYSTEM WITH PUMP FEED FROM DE-AERATOR

1y 4m to grant Granted Jul 07, 2026

18/824,954

Patent 12669268

CLOSED WELL LOOP FOR A GEOTHERMAL SYSTEM

1y 9m to grant Granted Jun 30, 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.

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Prosecution Projections

1-2

Expected OA Rounds

82%

Grant Probability

99%

With Interview (+28.7%)

2y 5m (~0m remaining)

Median Time to Grant

Low

PTA Risk

Based on 670 resolved cases by this examiner. Grant probability derived from career allowance rate.