Last updated: October 02, 2026

Application No. 18/713,260

Tungsten Chemical Mechanical Polishing Slurries

Non-Final OA

Filed

May 24, 2024

Priority

Dec 02, 2021 — provisional 63/264,801 +1 more

Examiner

DEO, DUY VU NGUYEN

Art Unit

1713

Tech Center

1700 — Chemical & Materials Engineering

Assignee

Versum Materials US LLC

OA Round

2 (Non-Final)

Interview Optional

— +7.3% interview lift. Interview already conducted in this application's prosecution history. This examiner has a 82% grant rate with +7.3% interview lift. Since an interview has already been tried, recommend written response with narrowed claims based on precedent claim evolution patterns.

Based on 1049 resolved cases, 2023–2026

Examiner Intelligence

DEO, DUY VU NGUYEN View full profile →

Grants 82% — above average

Career Allowance Rate

864 granted / 1049 resolved

+17.4% vs TC avg

Moderate +7% lift

Without

With

+7.3%

Interview Lift

resolved cases with interview

Typical timeline

2y 4m

Avg Prosecution

35 currently pending

Career history

1063

Total Applications

across all art units

Statute-Specific Performance

§101

0.4%

-39.6% vs TC avg

§103

44.9%

+4.9% vs TC avg

§102

26.7%

-13.3% vs TC avg

§112

13.7%

-26.3% vs TC avg

Black line = Tech Center average estimate • Based on career data from 1049 resolved cases

Prosecution Timeline

May 24, 2024

Application Filed

Apr 30, 2026

Non-Final Rejection mailed

Jun 10, 2026

Response Filed

Jul 17, 2026

Examiner Interview (Telephonic)

Aug 25, 2026

Request for Continued Examination

Aug 28, 2026

Response after Non-Final Action

Sep 23, 2026

Non-Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

18/278,071

Patent 12745582

METHOD OF CLEANING SILICON WAFER, METHOD OF MANUFACTURING SILICON WAFER, AND SILICON WAFER

3y 1m to grant Granted Sep 22, 2026

18/398,564

Patent 12745610

Implant Hard Mask for Substrates

2y 8m to grant Granted Sep 22, 2026

18/109,905

Patent 12727412

ETCHING COMPOSITIONS

3y 6m to grant Granted Sep 01, 2026

18/604,228

Patent 12727414

METHOD FOR PROCESSING A SUBSTRATE

2y 5m to grant Granted Sep 01, 2026

18/388,737

Patent 12713528

DEVICE FOR THERMAL CONDUCTION AND ELECTRICAL ISOLATION

2y 9m to grant Granted Aug 18, 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

2-3

Expected OA Rounds

82%

Grant Probability

90%

With Interview (+7.3%)

2y 4m (~0m remaining)

Median Time to Grant

Moderate

PTA Risk

Based on 1049 resolved cases by this examiner. Grant probability derived from career allowance rate.