Prosecution Insights
Last updated: April 19, 2026

Examiner: PARK, HYUN D

Tech Center 2800 • Art Units: 2857 2863 2865

This examiner grants 41% of resolved cases

Performance Statistics

41.1%
Allow Rate
-26.9% vs TC avg
668
Total Applications
+22.8%
Interview Lift
1594
Avg Prosecution Days
Based on 598 resolved cases, 2023–2026

Rejection Statute Breakdown

26.2%
§101 Eligibility
10.8%
§102 Novelty
33.6%
§103 Obviousness
23.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18332238 MULTI-WAVELENGTH SELECTION METHOD FOR OVERLAY MEASUREMENT, AND OVERLAY MEASUREMENT METHOD AND SEMICONDUCTOR DEVICE MANUFACTURING METHOD USING MULTI-WAVELENGTHS Non-Final OA Samsung Electronics Co., Ltd.
18104087 SYSTEMS AND METHODS FOR DETECTING FRACTURE-DRIVEN INTERACTIONS AND IDENTIFYING FRACTURE-DRIVEN INTERACTION RISK IN A SUBSURFACE VOLUME OF INTEREST Final Rejection CHEVRON U.S.A. INC.
18160902 LINEAR-RADON-MARCHENKO EQUATION BASED INTERNAL MULTIPLE ELIMINATION Final Rejection SAUDI ARABIAN OIL COMPANY
17951541 ESTIMATING PRODUCTIVITY AND ESTIMATED ULTIMATE RECOVERY (EUR) OF UNCONVENTIONAL WELLS THROUGH SPATIAL-PERFORMANCE RELATIONSHIP USING MACHINE LEARNING Final Rejection Saudi Arabian Oil Company
17929974 MEASURING MULTIPHASE FLOWS FROM WELLS Non-Final OA Saudi Arabian Oil Company
17450152 REDUNDANCY ENHANCED REMOVAL OF PRESSURE-EFFECT OFFSET FOR DRILL BIT STRAIN GAUGE MEASUREMENTS Final Rejection Halliburton Energy Services, Inc.
18288264 Battery Life Prediction Apparatus and Operating Method Thereof Non-Final OA LG Energy Solution, Ltd.
18282501 METHOD FOR ESTIMATING STATE OF HEALTH OF LITHIUM-SULFUR BATTERY Non-Final OA LG ENERGY SOLUTION, LTD.
18490897 METHOD OF SELECTING OPTIMIZED MULTIMODE OPTICAL FIBERS Non-Final OA CORNING INCORPORATED
17096898 Fail Density-Based Clustering for Yield Loss Detection Non-Final OA Texas Instruments Incorporated
16702809 METHODS AND APPARATUS TO MEASURE A TRANSFER FUNCTION OF A CONTROL SYSTEM Non-Final OA Texas Instruments Incorporated
17786572 DETERIORATION DEGREE DIAGNOSIS DEVICE Final Rejection Mitsubishi Electric Corporation
18133807 POSITION TRACKING FOR A LIFT DEVICE Non-Final OA Oshkosh Corporation
18092808 FRAMEWORK FOR FAULT DETECTION AND LOCALIZATION IN POWER DISTRIBUTION NETWORKS Final Rejection Aclara Technologies LLC
18205478 STRIDE LENGTH ESTIMATION AND CALIBRATION AT THE WRIST Non-Final OA Apple Inc.
18072881 SENSOR CALIBRATION USING DISTRIBUTED STOCHASTIC PARAMETER ESTIMATION Non-Final OA International Business Machines Corporation
18451330 DIAGNOSIS METHOD OF BATTERY, DIAGNOSIS APPARATUS OF BATTERY, MANAGEMENT SYSTEM OF BATTERY, AND NON-TRANSITORY STORAGE MEDIUM Non-Final OA KABUSHIKI KAISHA TOSHIBA
17285716 TRACKER CALIBRATION APPARATUS, TRACKER CALIBRATION METHOD, AND PROGRAM Final Rejection Sony Interactive Entertainment Inc.
18316097 METHOD OF DETERMINING A TIRE PERFORMANCE CHARACTERISTIC OF A TIRE Final Rejection AIRBUS OPERATIONS LIMITED
18495259 DETECTING DROP TYPE SURFACE Non-Final OA STMicroelectronics International N.V.
18254602 ANOMALY CLASSIFICATION DEVICE Final Rejection FANUC CORPORATION
18567603 BLOW MOLDING MACHINE AND METHOD FOR DETERMINING PRODUCT DEFECT Non-Final OA SUNTORY HOLDINGS LIMITED
18502141 POSITION CALCULATION DEVICE Non-Final OA SMC CORPORATION
18466817 AUTOMATIC CALIBRATION OF ENCODERS BASED ON TEMPERATURE Non-Final OA Avago Technologies International Sales Pte. Limited
18560174 FLUID CONTROL DEVICE, FLUID CONTROL SYSTEM, FLUID CONTROL DEVICE PROGRAM, AND FLUID CONTROL METHOD Non-Final OA HORIBA STEC, Co., Ltd.
18263098 METHOD FOR PREDICTING DEFORMATION OF ADDITIVELY MANUFACTURED OBJECT Non-Final OA KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
17745709 TESTING EQUIPMENT Final Rejection SILICONWARE PRECISION INDUSTRIES CO., LTD.
18494059 METHOD OF IMPROVING A TIMING OF A PLANNED MAINTENANCE AND METHOD OF OPTIMIZING A MAINTENANCE Non-Final OA BUERKERT WERKE GmbH & CO., KG
18549599 METHOD AND COMPUTER PROGRAM PRODUCT FOR MONITORING A BLEED AIR SUPPLY SYSTEM OF AN AIRCRAFT Final Rejection LUFTHANSA TECHNIK AG
18553559 SYSTEM AND METHOD FOR DETECTING A DEVICE STATE Non-Final OA Rolls-Royce Deutschland Ltd & Co KG

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