Prosecution Insights
Last updated: May 29, 2026

Examiner: RIDDLE, CHRISTINA A

Tech Center 2800 • Art Units: 1724 2851 2882

This examiner grants 81% of resolved cases

Performance Statistics

80.8%
Allow Rate
+12.8% vs TC avg
956
Total Applications
+13.7%
Interview Lift
1073
Avg Prosecution Days
Based on 920 resolved cases, 2023–2026

Rejection Statute Breakdown

1.1%
§101 Eligibility
4.6%
§102 Novelty
81.1%
§103 Obviousness
9.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18595753 EXTREME ULTRAVIOLET (EUV) SOURCE AND A SUBSTRATE PROCESSING APPARATUS INCLUDING THE SAME Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18368995 EXPOSURE APPARATUS AND DECONTAMINATION APPARATUS Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18779950 LITHOGRAPHY METHOD, ARTICLE MANUFACTURING METHOD, INFORMATION PROCESSING METHOD, COMPUTER READABLE MEDIUM, AND INFORMATION PROCESSING APPARATUS Non-Final OA CANON KABUSHIKI KAISHA
18488579 ILLUMINATION APPARATUS, MEASUREMENT APPARATUS, SUBSTRATE PROCESSING APPARATUS, AND METHOD FOR MANUFACTURING ARTICLE Non-Final OA CANON KABUSHIKI KAISHA
18397265 CONSTRUCTING A SUBSTRATE TOPOLOGY MAP BASED ON MEASURED PROPERTIES Final Rejection APPLIED MATERIALS, INC.
18732005 APPARATUS AND METHOD FOR AVOIDING A DEGRADATION OF AN OPTICAL USED SURFACE OF A MIRROR MODULE, PROJECTION SYSTEM, ILLUMINATION SYSTEM AND PROJECTION EXPOSURE APPARATUS Non-Final OA Carl Zeiss SMT GmbH
18624645 LITHOGRAPHIC APPARATUS, INSPECTION METHOD, AND METHOD FOR PERFORMING LITHOGRAPHY PROCESS Final Rejection TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
18353300 SUBSTRATE PROCESSING APPARATUS, SUBSTRATE PROCESSING METHOD, AND RECORDING MEDIUM Non-Final OA Tokyo Electron Limited
18783178 SYSTEM AND METHOD FOR CLEANING AN EUV MASK Non-Final OA Taiwan Semiconductor Manufacturing Co., Ltd.
18781567 SYSTEM AND METHOD FOR MONITORING AND CONTROLLING EXTREME ULTRAVIOLET PHOTOLITHOGRAPHY PROCESSES Non-Final OA Taiwan Semiconductor Manufacturing Co., Ltd.
18781721 SYSTEM AND METHOD FOR DETECTING DEBRIS IN A PHOTOLITHOGRAPHY SYSTEM Non-Final OA Taiwan Semiconductor Manufacturing Co., Ltd.
18721251 A SYSTEM FOR USE IN A LITHOGRAPHIC APPARATUS Final Rejection ASML NETHERLANDS B.V.
18699358 LITHOGRAPHIC APPARATUS AND ASSOCIATED METHODS Final Rejection ASML NETHERLANDS B.V.
18578780 APPARATUS AND METHOD FOR PREPARING AND CLEANING A COMPONENT Final Rejection ASML NETHERLANDS B.V.
17922580 SUBSTRATE SUPPORT SYSTEM, LITHOGRAPHIC APPARATUS AND METHOD OF EXPOSING A SUBSTRATE Final Rejection ASML NETHERLANDS B.V.
18913610 PROFILE DISPLAY DEVICE, LASER DEVICE, AND ELECTRONIC DEVICE MANUFACTURING METHOD Non-Final OA Gigaphoton Inc.
18746278 GAS LASER DEVICE AND ELECTRONIC DEVICE MANUFACTURING METHOD Non-Final OA Gigaphoton Inc.
18661503 Apparatus and Method for Lithographic Exposure of Large Area Substrates Final Rejection ZS Systems LLC
18265876 APPARATUS AND METHOD FOR IMPROVED EXPOSURE OF RELIEF PRECURSORS Non-Final OA XSYS GERMANY GMBH
17904945 SYSTEM AND METHOD FOR DETERMINING THE INTEGRITY OF CONTAINERS BY OPTICAL MEASUREMENT Non-Final OA GasPorOx AB

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