Last updated: July 17, 2026

Application No. 18/634,221

EXTREME ULTRAVIOLET LIGHT SOURCE WITH THERMAL STABILIZATION

Non-Final OA

Filed

Apr 12, 2024

Priority

Jun 14, 2023 — provisional 63/472,908

Examiner

NGUYEN, KIET TUAN

Art Unit

2881

Tech Center

2800 — Semiconductors & Electrical Systems

Assignee

Taiwan Semiconductor Manufacturing Company, Ltd.

OA Round

1 (Non-Final)

Interview Optional

— -0.2% interview lift. Interview lift (-0.2%) is below the 15.0% threshold. A written response is recommended.

Based on 680 resolved cases, 2023–2026

Examiner Intelligence

NGUYEN, KIET TUAN View full profile →

Grants 89% — above average

Career Allowance Rate

604 granted / 680 resolved

+20.8% vs TC avg

Minimal -0% lift

Without

With

+-0.2%

Interview Lift

resolved cases with interview

Fast prosecutor

2y 1m

Avg Prosecution

21 currently pending

Career history

694

Total Applications

across all art units

Statute-Specific Performance

§101

7.5%

-32.5% vs TC avg

§103

38.1%

-1.9% vs TC avg

§102

30.5%

-9.5% vs TC avg

§112

20.1%

-19.9% vs TC avg

Black line = Tech Center average estimate • Based on career data from 680 resolved cases

Prosecution Timeline

Apr 12, 2024

Application Filed

Apr 16, 2026

Non-Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

18/693,590

Patent 12683035

PACKAGE FOR TRANSPORTING AND/OR STORING A SET OF RADIOACTIVE MATERIALS, COMPRISING AN INTERNAL SHOCK-ABSORBER PROVIDED WITH SHOCK-ABSORBING TUBES

2y 3m to grant Granted Jul 14, 2026

18/218,932

Patent 12671071

PROCESSING ION PEAK AREAS IN MASS SPECTROMETRY

2y 12m to grant Granted Jun 30, 2026

18/250,109

Patent 12656255

PRECISION OPTICAL SPECTROSCOPY IN A MASS SPECTROMETER

3y 1m to grant Granted Jun 16, 2026

18/292,712

Patent 12658337

DEVICE FOR CONTROLLING AN ION, METHOD FOR FORMING THE SAME, AND METHOD FOR CONTROLLING THE SAME

2y 4m to grant Granted Jun 16, 2026

18/028,931

Patent 12646699

MASS SPECTROMETRY METHOD AND MASS SPECTROMETER

3y 2m to grant Granted Jun 02, 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

89%

Grant Probability

89%

With Interview (-0.2%)

2y 1m (~0m remaining)

Median Time to Grant

Low

PTA Risk

Based on 680 resolved cases by this examiner. Grant probability derived from career allowance rate.