Prosecution Insights
Last updated: October 01, 2026

Examiner: RHIM, WOO CHUL

Tech Center 3600 • Art Units: 2669 2676 3624

This examiner grants 79% of resolved cases

Analysis

Woo Chul Rhim, an examiner in Tech Center 3600 and Art Unit 2669, has overseen 158 resolved cases. His allowance rate of 78.5% is high, indicating a favorable environment for patent applicants. This rate suggests that a majority of the applications he resolves result in a grant, providing a strong statistical basis for optimism during the prosecution process.

The median days to allowance is 995, which serves as a benchmark for the expected duration of the process. The data also reveals an interview lift of 21.5%. This figure shows that conducting an interview can further improve the chances of allowance beyond the 78.5% baseline, offering an effective tactic for resolving any specific issues that may arise during the examination of an application.

For the 158 resolved cases, the 21.5% interview lift represents a significant strategic option. The 995-day median duration is a standard timeframe for this tech center. Practitioners should consider the high 78.5% allowance rate as a primary indicator of success, while using interviews as a key tool to ensure a smooth and efficient path to grant in Art Unit 2669.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Performance Statistics

78.6%
Allow Rate
+26.6% vs TC avg
184
Total Applications
+21.2%
Interview Lift
993
Avg Prosecution Days
Based on 159 resolved cases, 2023–2026

Rejection Statute Breakdown

7.1%
§101 Eligibility
22.0%
§102 Novelty
50.4%
§103 Obviousness
17.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18897271 METHOD AND APPARATUS WITH TRAINING FOR POINT CLOUD FEATURE PREDICTION Non-Final OA Samsung Electronics Co., Ltd.
18898075 MEASUREMENT POSITION MONITORING APPARATUS AND SEMICONDUCTOR MANUFACTURING EQUIPMENT INCLUDING THE SAME Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18282589 METHOD FOR TRAINING DEFECTIVE-SPOT DETECTION MODEL, METHOD FOR DETECTING DEFECTIVE-SPOT, AND METHOD FOR RESTORING DEFECTIVE-SPOT Non-Final OA BOE TECHNOLOGY GROUP CO., LTD.
18938234 SYSTEM AND METHOD FOR IMAGE ADJUSTMENT Non-Final OA Samsung Display Co., Ltd.
18961475 INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING METHOD, AND INFORMATION PROCESSING PROGRAM Non-Final OA FUJIFILM CORPORATION
18591631 Data Processing Method and Apparatus Final Rejection Huawei Technologies Co., Ltd.
18769418 GROUND FEATURE POSITION INFORMATION OUTPUT DEVICE, ASSISTANCE CONTROL DEVICE, GROUND FEATURE POSITION INFORMATION OUTPUT METHOD, AND COMPUTER-READABLE STORAGE MEDIUM Non-Final OA HONDA MOTOR CO.,LTD.
18781139 METHOD AND APPARATUS FOR ESTIMATING HEAD ROTATION ANGLE Non-Final OA NEC Corporation
18937074 FACE AUTHENTICATION DEVICE, FACE AUTHENTICATION METHOD, AND INFORMATION STORAGE MEDIUM Non-Final OA Japan Display Inc.
18660708 COMPUTER-READABLE RECORDING MEDIUM STORING MACHINE LEARNING PROGRAM, COMPUTER-READABLE RECORDING MEDIUM STORING DETERMINATION PROGRAM, AND MACHINE LEARNING DEVICE Non-Final OA Fujitsu Limited
18559045 JUDGMENT DEVICE, JUDGMENT METHOD, AND JUDGMENT PROGRAM Non-Final OA NTT, Inc.
18614619 IMAGE COMPRESSION Final Rejection Microsoft Technology Licensing, LLC
18678323 GENERATION OF ARTIFICIAL CONTRAST-ENHANCED RADIOLOGICAL IMAGES Non-Final OA BAYER AKTIENGESELLSCHAFT
18911552 IMAGE PROCESSING APPARATUS, ENDOSCOPE SYSTEM, AND IMAGE PROCESSING METHOD Non-Final OA OLYMPUS CORPORATION
18546811 METHOD AND APPARATUS OF BOUNDARY REFINEMENT FOR INSTANCE SEGMENTATION Non-Final OA TSINGHUA UNIVERSITY
18902600 SELECTIVE MASKING IN OPTICAL FLOW BLOCK MATCHING Non-Final OA Arm Limited
17882208 HIERARCHICAL SAMPLING FOR OBJECT IDENTIFICATION Final Rejection Johnson Controls Tyco IP Holdings LLP
18849467 DEEP LEARNING SUPER RESOLUTION OF MEDICAL IMAGES Non-Final OA The Trustees of the University of Pennsylvania

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