Last updated: May 29, 2026

Application No. 18/649,236

LEVELING SYSTEM FOR FLOW DIVERTER AND SEPARATOR FOR DOWNHOLE SEPARATION IN A MULTILATERAL WELL

Final Rejection

Filed

Apr 29, 2024

Priority

Sep 27, 2023 — provisional 63/585,881

Examiner

BEMKO, TARAS P

Art Unit

3672

Tech Center

3600 — Transportation & Electronic Commerce

Assignee

Halliburton Energy Services, Inc.

OA Round

2 (Final)

Interview Optional

— +19.4% interview lift. Interview already conducted in this application's prosecution history. This examiner has a 85% grant rate with +19.4% interview lift. Since an interview has already been tried, recommend written response with narrowed claims based on precedent claim evolution patterns.

Based on 1088 resolved cases, 2023–2026

Examiner Intelligence

BEMKO, TARAS P View full profile →

Grants 85% — above average

Career Allowance Rate

921 granted / 1088 resolved

+32.7% vs TC avg

Strong +19% interview lift

Without

With

+19.4%

Interview Lift

resolved cases with interview

Typical timeline

2y 3m

Avg Prosecution

33 currently pending

Career history

1126

Total Applications

across all art units

Statute-Specific Performance

§101

0.9%

-39.1% vs TC avg

§103

75.4%

+35.4% vs TC avg

§102

3.5%

-36.5% vs TC avg

§112

11.2%

-28.8% vs TC avg

Black line = Tech Center average estimate • Based on career data from 1088 resolved cases

Prosecution Timeline

Apr 29, 2024

Application Filed

May 13, 2025

Non-Final Rejection mailed

Jul 31, 2025

Applicant Interview (Telephonic)

Jul 31, 2025

Examiner Interview Summary

Aug 20, 2025

Response Filed

Sep 11, 2025

Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

19/196,394

Patent 12637913

DRILLING AUTOMATION SYSTEM

1y 0m to grant Granted May 26, 2026

18/271,171

Patent 12629991

DEVICE AND METHOD FOR PRODUCING A ROLLER BLIND WEB

2y 10m to grant Granted May 19, 2026

18/734,032

Patent 12618293

PDC BIT ELEMENT WITH RETENTION FEATURE

1y 11m to grant Granted May 05, 2026

18/820,518

Patent 12618290

APPARATUS, ROCK DRILLING RIG AND DRILLING METHOD

1y 8m to grant Granted May 05, 2026

18/941,974

Patent 12618311

METHODS AND SYSTEMS FOR INSTALLING TUBULARS IN WELLS

1y 5m to grant Granted May 05, 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

85%

Grant Probability

99%

With Interview (+19.4%)

2y 3m (~2m remaining)

Median Time to Grant

Moderate

PTA Risk

Based on 1088 resolved cases by this examiner. Grant probability derived from career allowance rate.