Last updated: August 17, 2026

Examiner: SULLIVAN, CALEEN O

Tech Center 2800 • Art Units: 1722 1795 2812 2896 2899

This examiner grants 89% of resolved cases

Performance Statistics

88.6%

Allow Rate

+20.6% vs TC avg

1,147

Total Applications

+11.4%

Interview Lift

761

Avg Prosecution Days

Based on 1140 resolved cases, 2023–2026

0.6%

§101 Eligibility

19.2%

§102 Novelty

60.3%

§103 Obviousness

5.7%

§112 Clarity

App #	Title	Status	Assignee
18383543	REFLECTIVE MASK FOR EXTREME ULTRAVIOLET LITHOGRAPHY AND A METHOD OF FABRICATING A SEMICONDUCTOR DEVICE USING THE SAME	Non-Final OA	SAMSUNG ELECTRONICS CO., LTD.
18581290	EUV SENSITIVE METAL OXIDE MATERIAL AS UNDERLAYER FOR THIN CAR TO IMPROVE PATTERN TRANSFER	Non-Final OA	Applied Materials, Inc.
18484372	SELECTIVE PASSIVATION OF PHOTORESISTS	Non-Final OA	Tokyo Electron Limited
18383612	MASSIVE MEASUREMENT SAMPLING USING MULTIPLE CHUCKS AND OPTICAL COLUMNS	Non-Final OA	KLA Corporation

IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.