Prosecution Insights
Last updated: April 19, 2026

Examiner: CHACKO DAVIS, DABORAH

Tech Center 1700 • Art Units: 1722 1737 1795

This examiner grants 72% of resolved cases

Performance Statistics

71.7%
Allow Rate
+6.7% vs TC avg
1008
Total Applications
+20.6%
Interview Lift
1303
Avg Prosecution Days
Based on 971 resolved cases, 2023–2026

Rejection Statute Breakdown

0.5%
§101 Eligibility
28.1%
§102 Novelty
35.0%
§103 Obviousness
24.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18312825 CARBOXYLATE SALT, PHOTORESIST COMPOSITION INCLUDING THE SAME, AND METHOD OF FORMING PATTERN USING THE PHOTORESIST COMPOSITION Non-Final OA Samsung Electronics Co., Ltd.
18192316 ORGANIC SALT, PHOTORESIST COMPOSITION INCLUDING THE SAME, AND PATTERN FORMATION METHOD USING THE SAME Non-Final OA Samsung Electronics Co., Ltd.
18191597 ACTINIC RAY-SENSITIVE OR RADIATION-SENSITIVE RESIN COMPOSITION, RESIST FILM, PATTERN FORMING METHOD, AND METHOD FOR MANUFACTURING ELECTRONIC DEVICE Final Rejection FUJIFILM Corporation
18093121 CHARACTERIZATION OF PHOTOSENSITIVE MATERIALS Non-Final OA Applied Materials, Inc.
18200495 METHOD OF MANUFACTURING A SEMICONDUCTOR DEVICE AND PHOTORESIST COMPOSITION Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18137288 METHOD OF MANUFACTURING A SEMICONDUCTOR DEVICE Non-Final OA TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
18662967 METHOD FOR MANUFACTURING ELECTRONIC DEVICE Final Rejection Innolux Corporation
18022213 SUBSTRATE PROCESSING METHOD AND SUBSTRATE PROCESSING APPARATUS Non-Final OA Tokyo Electron Limited
17943926 PATTERNING A SEMICONDUCTOR WORKPIECE Non-Final OA Tokyo Electron Limited
17943729 Hybrid Development of EUV Resists Non-Final OA Tokyo Electron Limited
17887946 PROVIDING A BARRIER LAYER FOR PHOTORESIST PROCESSING Non-Final OA Tokyo Electron Limited
18234049 RESIST COMPOSITION AND PATTERN FORMING PROCESS Non-Final OA Shin-Etsu Chemical Co., Ltd.
18316979 Sulfonium-Salt-Type Polymerizable Monomer, Polymer Photoacid Generator, Base Rein, Resist Composition, And Patterning Process Non-Final OA SHIN-ETSU CHEMICAL CO., LTD.
18317019 Novel Sulfonium Salt, Resist Composition, And Patterning Process Non-Final OA SHIN-ETSU CHEMICAL CO., LTD.
17882705 RETICLE COVERING PELLICLE FOR PHOTOLITHOGRPHY SCANNER Final Rejection Taiwan Semiconductor Manufacturing Company
17905632 STRUCTURE AND METHOD TO ACHIEVE POSITIVE TONE DRY DEVELOP BY A HERMETIC OVERLAYER Final Rejection Lam Research Corporation
18258453 METAL OXIDE FILM-FORMING COMPOSITION, METHOD FOR PRODUCING METAL OXIDE FILMS USING SAME, AND METHOD FOR REDUCING VOLUME SHRINKAGE RATIO OF METAL OXIDE FILMS Non-Final OA TOKYO OHKA KOGYO CO., LTD.
18821200 TIN COMPOUND, TIN COMPOSITION, PRODUCING METHODS THEREOF, RESIST SOLUTION, PATTERN FORMING METHOD, THIN FILM, PATTERNED THIN FILM, AND METHOD FOR PRODUCING SUBSTRATE Final Rejection Gelest, Inc.
18088843 AZASTANNATRANES, STANNATRANES, AND METHODS OF PREPARATION AND USE THEREOF Non-Final OA Gelest, Inc.
18141952 METHOD FOR ADJUSTING LOCAL THICKNESS OF PHOTORESIST Non-Final OA Shanghai Huali Integrated Circuit Corporation
18009874 RESIST UNDERLAYER FILM-FORMING COMPOSITION CONTAINING REACTION PRODUCT OF HYDANTOIN COMPOUNDS Final Rejection NISSAN CHEMICAL CORPORATION
17912202 SYSTEMS AND METHODS FOR FORMING STRUCTURES ON A SURFACE Non-Final OA ASML HOLDING N.V.
18340334 BLANK MASK AND PHOTOMASK USING THE SAME Non-Final OA SK enpulse Co., Ltd.
18123420 LOW INTENSITY PHOTOMASK AND SYSTEM, METHOD AND PROGRAM PRODUCT FOR MAKING LOW INTENSITY PHOTOMASK FOR USE IN FLAT PANEL DISPLAY LITHOGRAPHY Non-Final OA PHOTRONICS, INC.
17396167 SOLUBLE POLYIMIDES AND DIIMIDES FOR SPIN-ON CARBON APPLICATIONS Non-Final OA Brewer Science, Inc.

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