Prosecution Insights
Last updated: October 26, 2026

Chae S Lee, USPTO Patent Examiner

Listed by the USPTO as LEE, CHAE S

Tech Center 4100 • Art Units: 2415 2417 2469 4100

This examiner grants 88% of resolved cases

Analysis

LEE, CHAE S has 392 resolved cases and an 87.8% allowance rate. The measured interview lift is 13.0%, and the median time to allowance is 933 days. The profile covers Tech Center 4100 and Art Unit 2415. The 87.8% allowance rate indicates a generally favorable outcome in the resolved record, while the positive interview lift supports including interview preparation in prosecution planning where claim issues remain unsettled.

The prominent applicants are Samsung Electronics Co., Ltd., Apple Inc., and Huawei Technologies Co., Ltd. The leading firms are THE FARRELL LAW FIRM, P.C., Apple Inc. -- FKM, and Bayes PLLC. The concentration of major electronics companies and specialized counsel provides useful context for practitioners developing claim language and response positions in this docket.

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

Performance Statistics

87.8%
Allow Rate
+27.8% vs TC avg
414
Total Applications
+13.0%
Interview Lift
933
Avg Prosecution Days
Based on 392 resolved cases, 2023–2026

Rejection Statute Breakdown

5.1%
§101 Eligibility
3.0%
§102 Novelty
74.4%
§103 Obviousness
11.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18798121 METHOD AND DEVICE FOR TRANSMITTING UPLINK CHANNEL IN WIRELESS COMMUNICATION SYSTEM Non-Final OA Samsung Electronics Co., Ltd.
18792119 METHOD AND APPARATUS FOR NON-TERRESTRIAL NETWORK ACCESS MANAGEMENT Non-Final OA Samsung Electronics Co., Ltd.
18807499 Communications System with Single-Subscriber Device Switching Non-Final OA Apple Inc.
18703005 Multi-Slot PDCCH Monitoring With Slot Groups Final Rejection Apple Inc.
18919128 DATA TRANSMISSION METHOD AND APPARATUS Non-Final OA HUAWEI TECHNOLOGIES CO., LTD.
18882926 FULL-DUPLEX SELF-INTERFERENCE WEAKENING METHOD AND FULL-DUPLEX SELF-INTERFERENCE WEAKENING SYSTEM Non-Final OA HUAWEI TECHNOLOGIES CO., LTD.
18855775 TERMINAL AND COMMUNICATION METHOD Non-Final OA NTT DOCOMO, INC.
18855237 TERMINAL, RADIO COMMUNICATION METHOD, AND BASE STATION Non-Final OA NTT DOCOMO, INC.
18897402 METHOD FOR INDICATING TIMING ADVANCE, TERMINAL DEVICE AND NETWORK DEVICE Non-Final OA GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
18920546 Method and System for Performing Fast Mobility Based On Lower Layer Signaling Non-Final OA ZTE Corporation
18885021 LINK MEASUREMENTS FOR VEHICULAR DEVICE-TO-DEVICE LINKS Non-Final OA ZTE Corporation

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Who Appears Before This Examiner

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Frequently Asked Questions

What is examiner Chae S Lee's allowance rate?

87.8% of resolved applications examined by Chae S Lee were allowed (392 resolved cases), compared with 75.0% across Art Unit 2415 over the last five years.

Does an interview help with examiner Chae S Lee?

This examiner's interview lift is +13.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Chae S Lee take to allow a patent?

Applications allowed by Chae S Lee took 933 days on average from filing to allowance.

Which art unit does examiner Chae S Lee work in?

Chae S Lee examines applications in Art Unit 2415 in Tech Center 4100.

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