Prosecution Insights
Last updated: October 01, 2026

Examiner: PARK, HYUN D

Tech Center 2800 • Art Units: 1738 2857 2863 2865

This examiner grants 42% of resolved cases

Analysis

Hyun D. Park is an examiner in Tech Center 2800 and Art Unit 1738, with 618 resolved cases. His allowance rate of 41.6% suggests a competitive environment for patent applicants. This 41.6% rate indicates that fewer than half of the applications result in a grant, requiring careful prosecution strategy. The 618 resolved cases provide a robust statistical foundation for understanding the prosecution landscape in this art unit.

The median days to allowance for his cases is 1530. This 1530-day metric provides a benchmark for the time required to reach a successful resolution. For practitioners, the 1530 days to allowance is an important piece of information for managing client expectations and project timelines. This 1530-day figure reflects the typical pace of prosecution within Tech Center 2800 for this examiner.

The interview lift of 23.0% highlights the value of direct communication with the examiner. This 23.0% lift suggests that applications are significantly more likely to be allowed if an interview is conducted. When combined with the 41.6% base allowance rate, the 23.0% lift underscores the effectiveness of oral advocacy. Practitioners should consider the 23.0% lift as a primary strategy for managing the 618 resolved cases in Art Unit 1738.

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

Performance Statistics

41.7%
Allow Rate
-26.3% vs TC avg
683
Total Applications
+22.8%
Interview Lift
1530
Avg Prosecution Days
Based on 619 resolved cases, 2023–2026

Rejection Statute Breakdown

25.2%
§101 Eligibility
10.5%
§102 Novelty
39.1%
§103 Obviousness
20.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18406132 PROGRESSIVE TRANSMIT DELAYS FOR SYSTEMATIC TIME-DEPENDENT ERROR ELIMINATION IN LiDAR Final Rejection Samsung Electronics Co., Ltd.
18559555 FIT DETECTION SYSTEM FOR HEAD-MOUNTABLE DEVICES Non-Final OA Apple Inc.
18205478 STRIDE LENGTH ESTIMATION AND CALIBRATION AT THE WRIST Final Rejection Apple Inc.
15736184 MULTIPOINT MEASUREMENTS FOR WELLBORE RANGING Non-Final OA HALLIBURTON ENERGY SERVICES, INC.
18451330 DIAGNOSIS METHOD OF BATTERY, DIAGNOSIS APPARATUS OF BATTERY, MANAGEMENT SYSTEM OF BATTERY, AND NON-TRANSITORY STORAGE MEDIUM Final Rejection KABUSHIKI KAISHA TOSHIBA
17823565 ACOUSTIC DIAGNOSTIC APPARATUS, ACOUSTIC DIAGNOSTIC METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM RECORDING ACOUSTIC DIAGNOSTIC PROGRAM Non-Final OA KABUSHIKI KAISHA TOSHIBA
18133807 POSITION TRACKING FOR A LIFT DEVICE Non-Final OA Oshkosh Corporation
18116042 Dedicated Telemetry Subsystem For Telemetry Data Non-Final OA Google LLC
18288264 Battery Life Prediction Apparatus and Operating Method Thereof Final Rejection LG Energy Solution, Ltd.
18282501 METHOD FOR ESTIMATING STATE OF HEALTH OF LITHIUM-SULFUR BATTERY Final Rejection LG ENERGY SOLUTION, LTD.
18625688 FULL WAVEFORM INVERSION FOR SUBSURFACE CHARACTERIZATION Non-Final OA Saudi Arabian Oil Company
17929974 MEASURING MULTIPHASE FLOWS FROM WELLS Final Rejection Saudi Arabian Oil Company
18553559 SYSTEM AND METHOD FOR DETECTING A DEVICE STATE Final Rejection Rolls-Royce Deutschland Ltd & Co KG
18490897 METHOD OF SELECTING OPTIMIZED MULTIMODE OPTICAL FIBERS Final Rejection CORNING INCORPORATED
18254602 ANOMALY CLASSIFICATION DEVICE Non-Final OA FANUC CORPORATION
17718616 COMPONENT DAMAGE AND SALVAGE ASSESSMENT Final Rejection STATE FARM MUTUAL AUTOMOBILE INSURANCE COMPANY
18663991 SYSTEMS AND METHODS FOR HIGH THROUGHPUT COMPOUND LIBRARY CREATION Non-Final OA Recursion Pharmaceuticals, Inc.
18376121 SENSING DATA CORRECTION SYSTEM AND SENSING DATA CORRECTION METHOD Final Rejection Hitachi, Ltd.
18627599 CALIBRATION CONTROL METHOD FOR SPEAKER, APPARATUS, DEVICE, AND READABLE STORAGE MEDIUM Non-Final OA GOERTEK INC.
17096898 Fail Density-Based Clustering for Yield Loss Detection Final Rejection Texas Instruments Incorporated
18750771 BATTERY MONITORING DEVICE, AND BATTERY MANAGEMENT SYSTEM Non-Final OA DENSO CORPORATION
18495259 DETECTING DROP TYPE SURFACE Non-Final OA STMicroelectronics International N.V.
18019054 TOOL DRIFT COMPENSATION WITH MACHINE LEARNING Non-Final OA Applied Materials, Inc.
18639570 SYSTEMS, APPARATUSES, METHODS, AND COMPUTER PROGRAM PRODUCTS FOR INITIATING PERFORMANCE OF ONE OR MORE RESPONSIVE ACTIONS BASED AT LEAST IN PART ON ERRATIC OIL PRESSURE DATA Non-Final OA HONEYWELL INTERNATIONAL INC.
18263098 METHOD FOR PREDICTING DEFORMATION OF ADDITIVELY MANUFACTURED OBJECT Non-Final OA KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
17894611 MULTIPLE SAMPLE ANALYSIS METHOD Non-Final OA SHIMADZU CORPORATION
18372572 SYSTEM AND METHOD FOR MONITORING CHARGE LEVEL OF HVAC SYSTEM Final Rejection Johnson Controls Tyco IP Holdings LLP
18486506 MONITORING SYSTEM AND METHOD OF HYDROGEN REFUELING STATION AND COMPUTING DEVICE FOR EXECUTING THE SAME Non-Final OA AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
18384671 Method For Non-Destructive Testing Of A Plurality Of Components Final Rejection Electricite de France
17745709 TESTING EQUIPMENT Non-Final OA SILICONWARE PRECISION INDUSTRIES CO., LTD.

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