Prosecution Insights
Last updated: May 29, 2026

Examiner: CHANG, HANWAY

Tech Center 2800 • Art Units: 2872 2878 2881

This examiner grants 86% of resolved cases

Performance Statistics

85.8%
Allow Rate
+17.8% vs TC avg
691
Total Applications
+8.5%
Interview Lift
794
Avg Prosecution Days
Based on 642 resolved cases, 2023–2026

Rejection Statute Breakdown

1.4%
§101 Eligibility
19.3%
§102 Novelty
55.5%
§103 Obviousness
1.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18526286 DEVICES AND SYSTEMS FOR SPATIAL SUBTRACTION OF ELECTRON BACKSCATTER DIFFRACTION PATTERNS Non-Final OA Katholieke Universiteit Leuven
18822120 SYSTEMS AND METHODS FOR DISINFECTION Final Rejection P Tech, LLC
18524043 ION BEAM CURRENT MEASUREMENT DEVICE AND ION BEAM IMPLANTATION SYSTEM Non-Final OA Infineon Technologies AG
18563569 ION FOCUSING AND MANIPULATION Non-Final OA Purdue Research Foundation
18203356 MASS SPECTROMETER Final Rejection SHIMADZU CORPORATION
18391797 BEARING SYSTEM, LITHOGRAPHY SYSTEM, AND METHOD FOR PRODUCING A BEARING SYSTEM Non-Final OA Carl Zeiss SMT GmbH
18678254 METHODS OF GENERATING EXTREME ULTRAVIOLET RADIATION Final Rejection Taiwan Semiconductor Manufacturing Company, Ltd.
18118023 EUV SOURCE STABILIZATION APPARATUS AND METHOD Non-Final OA TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
18274047 Lamella Mounting Method, and Analysis System Final Rejection Hitachi High-Tech Corporation
18280917 TARGET MATERIAL TRANSFER SYSTEM COMPONENTS AND METHODS OF MAKING THE SAME Non-Final OA ASML Netherlands B.V.
18150745 CHARGED-PARTICLE MULTI-BEAM COLUMN, CHARGED-PARTICLE MULTI-BEAM COLUMN ARRAY, INSPECTION METHOD Final Rejection ASML Netherlands B.V.
18011593 APPARATUS FOR AND METHOD OF ACCELERATING DROPLETS IN A DROPLET GENERATOR FOR AN EUV SOURCE Non-Final OA ASML Netherlands B.V.
18404400 DEVICE FOR CONTROLLING TRAPPED IONS Non-Final OA Infineon Technologies Austria AG
18391947 COMPOSITIONAL MAPPING EMPLOYING VARIABLE CHARGED PARTICLE BEAM PARAMETERS FOR IMAGING AND ENERGY-DISPERSIVE X-RAY SPECTROSCOPY Non-Final OA FEI COMPANY
18572776 ELECTRON BEAM LITHOGRAPHY APPARATUS, ELECTRON BEAM LITHOGRAPHY METHOD, AND RECORDING MEDIUM Non-Final OA IMS Nanofabrication GmbH
18018960 EXTREME ULTRAVIOLET LIGHT SOURCE APPARATUS Non-Final OA USHIO DENKI KABUSHIKI KAISHA
18280542 Bifurcated Mass Spectrometer Final Rejection DH Technologies Development Pte. Ltd.
18247799 High Resolution Detection to Manage Group Detection for Quantitative Analysis by MS/MS Final Rejection DH TECHNOLOGIES DEVELOPMENT PTE. LTD.
18422052 ULTRAVIOLET LIGHT DISINFECTANT DEVICE Non-Final OA NORTHLIGHT ELECTRIC COMPANY LIMITED
18517515 SCALABLE NEUTRAL ATOM BASED QUANTUM COMPUTING Non-Final OA Atom Computing Inc.
18329325 SYSTEM AND METHOD FOR GENERATING AND ANALYZING ROUGHNESS MEASUREMENTS Non-Final OA FRACTILIA, LLC
18099316 RADIOTHERAPY SYSTEM AND METHOD FOR CONTROLLING SAFETY INTERLOCK THEREOF Non-Final OA NEUBORON THERAPY SYSTEM LTD.
17357893 HANDHELD UV-C SANITIZING APPARATUS AND METHOD Non-Final OA Crosby Innovations, LLC
18091808 CHARGED PARTICLE BEAM COLUMN, CHARGED PARTICLE BEAM CHROMATIC ABERRATION CORRECTOR, AND METHOD OF CORRECTING CHARGED PARTICLE BEAM CHROMATIC ABERRATION Final Rejection ICT Integrated Circuit Testing Gesellschaft für Halbleiterpüftechnik mbH

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