Last updated: July 17, 2026

Application No. 18/459,610

ELECTROLYSIS SYSTEM

Final Rejection

Filed

Sep 01, 2023

Priority

Sep 01, 2022 — provisional 63/403,072

Examiner

COHEN, BRIAN W

Art Unit

1759

Tech Center

1700 — Chemical & Materials Engineering

Assignee

Schlumberger Technology Corporation

OA Round

2 (Final)

Interview Optional

— +47.7% interview lift. Interview already conducted in this application's prosecution history. This examiner has a 54% grant rate with +47.7% interview lift. Since an interview has already been tried, recommend written response with narrowed claims based on precedent claim evolution patterns.

Based on 640 resolved cases, 2023–2026

Examiner Intelligence

COHEN, BRIAN W View full profile →

Grants 54% of resolved cases

Career Allowance Rate

348 granted / 640 resolved

-10.6% vs TC avg

Strong +48% interview lift

Without

With

+47.7%

Interview Lift

resolved cases with interview

Typical timeline

3y 3m

Avg Prosecution

38 currently pending

Career history

669

Total Applications

across all art units

Statute-Specific Performance

§101

0.1%

-39.9% vs TC avg

§103

89.9%

+49.9% vs TC avg

§102

3.7%

-36.3% vs TC avg

§112

2.0%

-38.0% vs TC avg

Black line = Tech Center average estimate • Based on career data from 640 resolved cases

Prosecution Timeline

Show 2 earlier events

Apr 06, 2026

Interview Requested

Apr 17, 2026

Applicant Interview (Telephonic)

Apr 17, 2026

Examiner Interview Summary

Apr 22, 2026

Response Filed

Jun 02, 2026

Final Rejection mailed

Jun 11, 2026

Interview Requested

Jun 25, 2026

Examiner Interview Summary

Jun 25, 2026

Applicant Interview (Telephonic)

Precedent Cases

Applications granted by this same examiner with similar technology

18/094,517

Patent 12680175

HYDROGEN-OXYGEN MIXTURE GAS PRODUCING AND SUPPLYING DEVICE

3y 6m to grant Granted Jul 14, 2026

18/276,836

Patent 12680181

A GEOTHERMAL HYDROGEN PRODUCTION SYSTEM

2y 11m to grant Granted Jul 14, 2026

18/295,941

Patent 12678733

CARBON DIOXIDE RECOVERY SYSTEM

3y 3m to grant Granted Jul 14, 2026

18/341,109

Patent 12678734

CARBON DIOXIDE RECOVERY SYSTEM

3y 0m to grant Granted Jul 14, 2026

18/221,622

Patent 12667899

REVOLVING CATHODE TOOL AND METHOD FOR CO-ROTATING ELECTROCHEMICAL MACHINING OF INNER WALL OF AERO-ENGINE CASING

2y 11m 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.

Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

3-4

Expected OA Rounds

54%

Grant Probability

99%

With Interview (+47.7%)

3y 3m (~4m remaining)

Median Time to Grant

Moderate

PTA Risk

Based on 640 resolved cases by this examiner. Grant probability derived from career allowance rate.