Last updated: July 17, 2026

Application No. 19/288,643

EXTREME ULTRAVIOLET MASK WITH CAPPING LAYER

Non-Final OA

Filed

Aug 01, 2025

Priority

Oct 12, 2021 — provisional 63/254,796 +1 more

Examiner

DEGRASSE, IAN ISAAC

Art Unit

2818

Tech Center

2800 — Semiconductors & Electrical Systems

Assignee

Taiwan Semiconductor Manufacturing Company, Ltd.

OA Round

1 (Non-Final)

Interview Optional

— -3.6% interview lift. Interview lift (-3.6%) is below the 15.0% threshold. A written response is recommended.

Based on 22 resolved cases, 2023–2026

Examiner Intelligence

DEGRASSE, IAN ISAAC View full profile →

Grants 77% — above average

Career Allowance Rate

17 granted / 22 resolved

+9.3% vs TC avg

Minimal -4% lift

Without

With

+-3.6%

Interview Lift

resolved cases with interview

Typical timeline

3y 6m

Avg Prosecution

42 currently pending

Career history

Total Applications

across all art units

Statute-Specific Performance

§103

75.5%

+35.5% vs TC avg

§102

20.5%

-19.5% vs TC avg

§112

4.1%

-35.9% vs TC avg

Black line = Tech Center average estimate • Based on career data from 22 resolved cases

Prosecution Timeline

Aug 01, 2025

Application Filed

Apr 23, 2026

Non-Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

17/976,587

Patent 12672455

DISPLAY DEVICE INCLUDING LIGHT EMITTING ELEMENT

3y 8m to grant Granted Jun 30, 2026

17/917,657

Patent 12660548

ASC PROCESS AUTOMATION DEVICE

3y 8m to grant Granted Jun 16, 2026

18/013,245

Patent 12660390

METHOD OF MANUFACTURING BASE MEMBER, METHOD OF MANUFACTURING LIGHT-EMITTING DEVICE, BASE MEMBER, AND LIGHT-EMITTING DEVICE

3y 5m to grant Granted Jun 16, 2026

17/920,340

Patent 12622060

DISPLAY SUBSTRATE, METHOD FOR PREPARING DISPLAY SUBSTRATE, AND DISPLAY DEVICE

3y 6m to grant Granted May 05, 2026

17/912,753

Patent 12604536

Semiconductor Device and Method For Manufacturing Semiconductor Device

3y 6m to grant Granted Apr 14, 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

77%

Grant Probability

74%

With Interview (-3.6%)

3y 6m (~2y 6m remaining)

Median Time to Grant

Low

PTA Risk

Based on 22 resolved cases by this examiner. Grant probability derived from career allowance rate.