Prosecution Insights
Last updated: April 19, 2026

Examiner: CHOI, JAMES J

Tech Center 2800 • Art Units: 2878 2881

This examiner grants 67% of resolved cases

Performance Statistics

66.8%
Allow Rate
-1.2% vs TC avg
437
Total Applications
+47.1%
Interview Lift
1095
Avg Prosecution Days
Based on 374 resolved cases, 2023–2026

Rejection Statute Breakdown

1.2%
§101 Eligibility
14.7%
§102 Novelty
63.6%
§103 Obviousness
17.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18454285 OPTOELECTROFLUIDIC DEVICE FOR MASSIVE PARALLEL TRAPPING AND ENHANCED SPECTROSCOPY OF SINGLE NANOSCALE OBJECTS Non-Final OA Vanderbilt University
18464243 DIRECT WRITING SYSTEM USED FOR ELECTRON BEAM LITHOGRAPHY Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18458075 SEMICONDUCTOR DEVICE Non-Final OA Toshiba Electronic Devices & Storage Corporation
18456304 GAS INJECTION SUBSYSTEM FOR USE IN AN INSPECTION SYSTEM TO INSPECT A SAMPLE BY USE OF CHARGED PARTICLES AND INSPECTION SYSTEM HAVING SUCH GAS INJECTION SUBSYSTEM Non-Final OA Carl Zeiss SMT GmbH
18038476 Slow Atomic Beam Generator, Physical Package, Physical Package for Optical Lattice Clock, Physical Package for Atomic Clock, Physical Package for Atomic Interferometer, Physical Package for Quantum Information Processing Device, and Physical Package System Final Rejection RIKEN
17348031 TUNING APPARATUS FOR MINIMUM DIVERGENCE ION BEAM Final Rejection Axcelis Technologies, Inc.
18128405 Charged Particle Beam Device Non-Final OA Hitachi High-Tech Corporation
18127864 Charged Particle Beam System Final Rejection Hitachi High-Tech Corporation
18127858 Processing System and Charged Particle Beam Apparatus Final Rejection Hitachi High-Tech Corporation
18364588 Warm Wafer After Ion Cryo-Implantation Non-Final OA Taiwan Semiconductor Manufacturing Co., Ltd.
17781485 CHARGE FILTER ARRANGEMENT AND APPLICATIONS THEREOF Final Rejection THE TRUSTEES OF INDIANA UNIVERSITY
17989195 METHOD FOR FOCUSING AND OPERATING A PARTICLE BEAM MICROSCOPE Non-Final OA Carl Zeiss Microscopy GmbH
17891473 ENERGY DISPERSIVE X-RAY SPECTROSCOPY SENSING UNIT BACKGROUND Final Rejection APPLIED MATERIALS ISRAEL LTD.
18281722 System and Method for Variable FFT Analysis Windows in Mass Spectrometry Non-Final OA DH Technologies Development Pte. Ltd.
18174467 SYSTEMS, DEVICES, AND METHODS FOR MULTI-DIRECTIONAL DIPOLE MAGNETS AND COMPACT BEAM SYSTEMS Non-Final OA TAE TECHNOLOGIES, INC.
18477251 METHOD OF AUTOMATED DATA ACQUISITION FOR A TRANSMISSION ELECTRON MICROSCOPE Non-Final OA FEI Company
17957171 CHARGED PARTICLE MICROSCOPE HAVING VACUUM IN SPECIMEN CHAMBER Non-Final OA FEI COMPANY
17948531 APPARATUS AND METHOD FOR AUTOMATED GRID VALIDATION Non-Final OA FEI Company
18170142 ELECTROMAGNETIC LENS AND ELECTRON SOURCE MECHANISM Non-Final OA NuFlare Technology, Inc.
18464063 METHOD OF CONTROLLING A MULTI-POLE DEVICE TO REDUCE OMISSION OF EXITING CHARGED PARTICLES FROM DOWNSTREAM ANALYSIS Non-Final OA WATERS TECHNOLOGIES CORPORATION
18041408 ELECTRON EMITTER AND DEVICE PROVIDED WITH SAME Non-Final OA Denka Company Limited
18455356 TWO FREQUENCY ION TRAP PERFORMANCE Non-Final OA Thermo Finnigan LLC
18251934 Removable Ion Source Capable Of Axial Or Cross Beam Ionization Final Rejection THERMO FINNIGAN LLC
18267356 DEVICE FOR DISINFECTING A FLUID FLOW IN A CONDUIT BY MEANS OF UV-C RADIATION Final Rejection ISTITUTO NAZIONALE DI ASTROFISICA
17974331 Systems, Devices, and Methods for Converting a Neutron Beam Non-Final OA TAE Life Sciences, LLC
18352733 MASS SPECTROMETRY DEVICE WITH SEGMENTED AND GRADUAL ION TRANSPORT CHANNEL Final Rejection Hangzhou Calibra TECHNOLOGIES Co., Ltd.
18055999 EFFICIENT AND STABLE SECONDARY ION EXTRACTION APPARATUS Final Rejection Institute of Geology, Chinese Academy of Geological Sciences
17779796 ELECTRON BEAM RADIATION SYSTEM WITH ADVANCED APPLICATOR COUPLING SYSTEM HAVING INTEGRATED DISTANCE DETECTION AND TARGET ILLUMINATION Final Rejection INTRAOP MEDICAL CORPORATION

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