Prosecution Insights
Last updated: April 19, 2026

Examiner: NGUYEN, HUNG

Tech Center 2800 • Art Units: 2851 2882 2899

This examiner grants 91% of resolved cases

Performance Statistics

90.6%
Allow Rate
+22.6% vs TC avg
1480
Total Applications
+9.0%
Interview Lift
863
Avg Prosecution Days
Based on 1449 resolved cases, 2023–2026

Rejection Statute Breakdown

1.7%
§101 Eligibility
32.0%
§102 Novelty
40.6%
§103 Obviousness
14.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18899570 LITHOGRAPHY TRACK SYSTEM Non-Final OA Samsung Electronics Co., Ltd.
18888268 SEMICONDUCTOR PROCESS APPARATUS Non-Final OA Samsung Electronics Co., Ltd.
18806848 METHOD OF CONFIGURING EXTREME ULTRA-VIOLET (EUV) ILLUMINATION SYSTEM, AND EUV EXPOSURE METHOD USING THE EUV ILLUMINATION SYSTEM Non-Final OA Samsung Electronics Co., Ltd.
18432182 METHOD OF FORMING PHOTORESIST PATTERNS AND BAKING EQUIPMENT Non-Final OA Samsung Electronics Co., Ltd.
18628911 EXPOSURE METHOD, EXPOSURE DEVICE, AND METHOD OF MANUFACTURING OPTICALLY-ANISOTROPIC LAYER Non-Final OA FUJIFILM Corporation
18775420 DIGITAL LITHOGRAPHY APPARATUS WITH IMAGING DEVICE POSITIONED TO MITIGATE MOIRE EFFECT Non-Final OA Applied Materials, Inc.
18788179 CLEANING METHOD, METHOD FOR FORMING SEMICONDUCTOR STRUCTURE AND SYSTEM THEREOF Non-Final OA TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
18788448 SEMICONDUCTOR PROCESSING TOOL AND METHODS OF OPERATION Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18906920 ARRANGEMENT, METHOD AND COMPUTER PROGRAM PRODUCT FOR CALIBRATING FACET MIRRORS Non-Final OA Carl Zeiss SMT GmbH
18437409 EUV COLLECTOR FOR USE IN AN EUV PROJECTION EXPOSURE APPARATUS Final Rejection Carl Zeiss SMT GmbH
18771025 EDGE EXPOSURE APPARATUS AND EDGE EXPOSURE METHOD Non-Final OA Tokyo Electron Limited
18769841 LIQUID TREATMENT METHOD AND STORAGE MEDIUM Final Rejection Tokyo Electron Limited
18714547 OVERLAY METROLOGY BASED ON TEMPLATE MATCHING WITH ADAPTIVE WEIGHTING Non-Final OA ASML NETHERLANDS B.V.
18700780 A FLUID EXTRACTION SYSTEM, METHOD AND LITHOGRAPHIC APPARATUS Final Rejection ASML NETHERLANDS B.V.
18286327 METROLOGY TOOL CALIBRATION METHOD AND ASSOCIATED METROLOGY TOOL Non-Final OA ASML Netherlands B.V.
18270988 METHOD FOR DETERMINING A FOCUS ACTUATION PROFILE FOR ONE OR MORE ACTUATORS OF A LITHOGRAPHIC EXPOSURE APPARATUS Final Rejection ASML NETHERLANDS B.V.
18904718 EUV LIGHT GENERATION APPARATUS AND ELECTRONIC DEVICE MANUFACTURING METHOD Non-Final OA Gigaphoton Inc.
18902950 PHOTOMASK AND MANUFACTURING METHOD OF SEMICONDUCTOR DEVICE Non-Final OA Powerchip Semiconductor Manufacturing Corporation
18849097 APPARATUS FOR AND METHOD OF VIBRATION CANCELLATION FOR LASER WAVELENGTH AND BANDWIDTH STABILITY Non-Final OA Cymer, LLC
18890360 MULTI-CAMERA SYNCHRONIZATION FOR INSPECTION SYSTEMS Non-Final OA VIRTEK VISION INTERNATIONAL INC.
18829227 USE OF LAYOUT ANALYSIS TO ENABLE EFFICIENT AND EFFECTIVE RANDOM DEFECT INSPECTION USING A VECTOR-MODE E-BEAM INSPECTION MACHINE Non-Final OA PDF Solutions, Inc.
18838815 PHOTOETCHING MACHINE WITH OPTICAL FIBER ARRAYS Non-Final OA WESTLAKE UNIVERSITY
18714411 AN ASSEMBLY FOR A LASER-OPERATED LIGHT SOURCE AND METHOD OF USE Non-Final OA ASML NETHERLANDS B.V. P.O.
18398651 MICRO LED DETECTION DEVICE Non-Final OA BUENO OPTICS CO., LTD.

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