Prosecution Insights
Last updated: October 02, 2026

Examiner: LEE, SANGKYUNG

Tech Center 3600 • Art Units: 2855 2857 2858 2859 2866 3619 3671

This examiner grants 60% of resolved cases

Analysis

Sangkyung Lee works in Tech Center 3600 and Art Unit 2855. Across 162 resolved cases, the examiner has an allowance rate of 59.9 percent. The interview lift is 10.8 percent, indicating a positive but moderate benefit from conducting examiner interviews.

The median days to allowance stands at 1063. This timeline is a key factor for applicants in Art Unit 2855. The 59.9 percent allowance rate shows that a majority of the 162 resolved cases reach allowance. The 10.8 percent interview lift suggests that while interviews help, they are not as transformative as in other dockets.

For the resolved cases, the 1063 median days to allowance provides a benchmark for pendency. Practitioners should consider the allowance rate as a baseline for success. The lift suggests that an interview is a useful tool to marginally improve the odds of allowance beyond the standard rate.

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

Performance Statistics

60.1%
Allow Rate
+8.1% vs TC avg
198
Total Applications
+10.3%
Interview Lift
1063
Avg Prosecution Days
Based on 163 resolved cases, 2023–2026

Rejection Statute Breakdown

25.2%
§101 Eligibility
11.5%
§102 Novelty
55.6%
§103 Obviousness
7.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18713562 METHOD FOR AUTOMATICALLY DIAGNOSING A PART Non-Final OA SAFRAN AIRCRAFT ENGINES
18033676 METHOD FOR ASSESSING THE SERVICE LIFE OF A TURBINE ENGINE PART Non-Final OA SAFRAN AIRCRAFT ENGINES
18311323 ARRANGEMENT INCLUDING A FIBER-REINFORCED COMPOSITE COMPONENT OR ASSEMBLY, AIRCRAFT OR SPACECRAFT, METHOD OF PRODUCING AN ARRANGEMENT, AS WELL AS METHOD OF MONITORING STRUCTURAL INTEGRITY Non-Final OA Airbus SAS
18160783 Measurement Method, Sensor Device, And Inertial Measurement Device Final Rejection SEIKO EPSON CORPORATION
18610505 SYSTEM AND METHOD FOR ESTIMATING A SERVICE LIFE OF A COMPONENT OF AN AIRCRAFT POWER PLANT Non-Final OA PRATT & WHITNEY CANADA CORP.
18687716 BATTERY STATE ESTIMATION METHOD AND BATTERY SYSTEM PROVIDING THE SAME Non-Final OA LG ENERGY SOLUTION, LTD.
18017778 INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND PROGRAM Final Rejection Sony Group Corporation
17920512 METHOD FOR DETECTING SOFT SHORTS IN AN ELECTRODE ASSEMBLY, TEST STAND AND PRODUCTION LINE Final Rejection Bayerische Motoren Werke Aktiengesellschaft
18638299 CHARGING DEVICE, SERVER, AND DIAGNOSTIC SYSTEM Non-Final OA MURATA MANUFACTURING CO., LTD.
18591020 DETECTION METHOD AND DETECTION APPARATUS FOR ELECTRODE PLATE AND STACKING SYSTEM Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18215861 INTELLIGENT BRIDGE CONDITION MONITORING Non-Final OA INTERNATIONAL BUSINESS MACHINES CORPORATION
18296156 ANALYSIS SYSTEM Non-Final OA YOKOGAWA ELECTRIC CORPORATION
18484876 OIL LEVEL MONITORING SYSTEM Non-Final OA FORD GLOBAL TECHNOLOGIES, LLC
18646120 BATTERY DIAGNOSTIC SYSTEM Non-Final OA DENSO CORPORATION
18735377 DEVICE FOR CALIBRATING A SPALL PROPAGATION MODEL OF A BEARING AND ASSOCIATED METHOD AND SYSTEM Non-Final OA Aktiebolaget SKF
18681599 ULTRA LOW-POWER WIRELESS EMI MEASUREMENT Non-Final OA Purdue Research Foundation
18591128 INCIDENT DRIVEN WORKLOAD DRIFT DETECTION AND CLASSIFICATION Final Rejection Hewlett Packard Enterprise Development LP
18638999 SIGNAL GENERATOR FOR GENERATING A RADIO FREQUENCY SIGNAL Non-Final OA Rohde & Schwarz GmbH & Co. KG

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