Prosecution Insights
Last updated: May 29, 2026

Examiner: CHU, JOHN S Y

Tech Center 1700 • Art Units: 1722 1737 1795

This examiner grants 77% of resolved cases

Performance Statistics

77.2%
Allow Rate
+12.2% vs TC avg
1,026
Total Applications
+5.2%
Interview Lift
1070
Avg Prosecution Days
Based on 963 resolved cases, 2023–2026

Rejection Statute Breakdown

0.4%
§101 Eligibility
13.2%
§102 Novelty
75.1%
§103 Obviousness
6.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18153568 COMPOSITION FOR DEVELOPING AND METHOD OF FORMING PATTERN USING THE SAME Non-Final OA Samsung Electronics Co, Ltd.
17405138 PHOTORESIST COMPOSITIONS, METHODS FOR FORMING PATTERN USING THE SAME, AND METHODS FOR FABRICATING SEMICONDUCTOR DEVICE USING THE SAME Final Rejection Samsung Electronics Co., Ltd.
18742227 PHOTOSENSITIVE RESIN COMPOSITION, METHOD FOR MANUFACTURING CURED RELIEF PATTERN, AND SEMICONDUCTOR APPARATUS Final Rejection ASAHI KASEI KABUSHIKI KAISHA
17994766 PHOTOSENSITIVE COMPOSITION, FILM, COLOR FILTER, SOLID-STATE IMAGING ELEMENT, AND IMAGE DISPLAY DEVICE Non-Final OA FUJIFILM Corporation
17946148 PHOTOSENSITIVE MATERIAL, TRANSFER FILM, MANUFACTURING METHOD OF CIRCUIT WIRING, MANUFACTURING METHOD OF TOUCH PANEL, AND PATTERN FORMING METHOD Non-Final OA FUJIFILM Corporation
17814718 CONDUCTIVE COMPOSITE, RESIST COATING MATERIAL, RESIST, AND METHOD FOR FORMING RESIST PATTERN Non-Final OA Mitsubishi Chemical Corporation
18147472 LIGHT RESPONSIVE PHOTORESISTS AND METHODS Non-Final OA Intel Corporation
18782565 RESIN, PHOTORESIST COMPOSITION, AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18757949 PHOTORESIST FOR SEMICONDUCTOR FABRICATION Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18232225 PHOTORESIST COMPOSITION AND METHOD OF FORMING PHOTORESIST PATTERN Non-Final OA TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
18312199 COMPOSITION AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE Non-Final OA TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
17585033 METHOD OF MANUFACTURING SEMICONDUCTOR STRUCTURE AND PHOTORESIST COMPOSITION Final Rejection TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
18095235 RESIST COMPOSITION AND PATTERN FORMING PROCESS Non-Final OA Shin-Etsu Chemical Co., Ltd.
17944654 CHEMICALLY AMPLIFIED RESIST COMPOSITION AND PATTERNING PROCESS Non-Final OA Shin-Etsu Chemical Co., Ltd.
17545062 ALCOHOL COMPOUND, CHEMICALLY AMPLIFIED NEGATIVE RESIST COMPOSITION AND RESIST PATTERN FORMING PROCESS Final Rejection Shin-Etsu Chemical Co., Ltd.
18335852 PHOTO LIGAND DESIGN FOR EUV OR E-BEAM METALLIC PHOTORESISTS Non-Final OA Taiwan Semiconductor Manufacturing Co., Ltd.
17734975 POLYMER CROSSLINK DE-CROSSLINK PROCESSES FOR RESIST PATTERNING Non-Final OA Taiwan Semiconductor Manufacturing Co., Ltd.
17868563 RESIST UNDERLAYER COMPOSITION AND METHOD OF FORMING PATTERNS USING THE COMPOSITION Non-Final OA SAMSUNG SDI CO., LTD.
18266620 COMPOUND, LEVELING AGENT, COATING COMPOSITION, RESIST COMPOSITION, AND ARTICLE Non-Final OA DIC Corporation
18222666 PHOTORESIST COMPOSITION AND METALLIZATION METHOD Non-Final OA DuPont Electronic Materials International, LLC
17913610 LIGHT-SENSITIVE RESIN ORIGINAL PRINTING PLATE FOR LETTERPRESS PRINTING Non-Final OA TOYOBO CO., LTD.
18085082 PHOTORESIST UNDERLAYER COMPOSITION Non-Final OA ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.
18277113 RADIATION-SENSITIVE RESIN COMPOSITION AND PATTERN FORMATION METHOD Non-Final OA JSR CORPORATION
17913016 PHOTOSENSITIVE RESIN COMPOSITION, PHOTOSENSITIVE ELEMENT, AND METHOD FOR PRODUCING WIRING BOARD Non-Final OA Showa Denko Materials Co., Ltd.
18195200 SUBSTRATE PROCESSING COMPOSITION AND SUBSTRATE PROCESSING METHOD USING THE SAME Non-Final OA SK Inc.
17777638 REPLACEMENT LIQUID OF LIQUID FILLING BETWEEN RESIST PATTERNS, AND METHOD FOR PRODUCING RESIST PATTERNS USING THE SAME Final Rejection Merch Patent GmbH

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