Prosecution Insights
Last updated: October 01, 2026

Examiner: CHAN, WEI

Tech Center 3700 • Art Units: 2844 2845 2897 3752

This examiner grants 75% of resolved cases

Analysis

Wei Chan is an examiner in Tech Center 3700 and Art Unit 2844. With 591 resolved cases, the examiner has an allowance rate of 74.6%. This 74.6% rate suggests a favorable prosecution environment where most applications result in a grant. The 591 resolved cases offer a reliable statistical foundation for applicants in this unit.

The interview lift is 13.8%, indicating that direct engagement with the examiner provides a positive benefit. This 13.8% lift can be a useful tool for resolving technical disagreements. The median days to allowance is 789, which is a relatively short duration for the prosecution process. Practitioners should expect a 789-day timeline and use the 13.8% lift to maintain momentum toward an allowance. The combination of a 74.6% allowance rate and a 789-day median suggests that this examiner is efficient at reaching resolutions. The 591 resolved cases show a consistent pattern of timely and successful outcomes.

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

Performance Statistics

74.6%
Allow Rate
+4.6% vs TC avg
617
Total Applications
+13.8%
Interview Lift
789
Avg Prosecution Days
Based on 591 resolved cases, 2023–2026

Rejection Statute Breakdown

1.7%
§101 Eligibility
4.8%
§102 Novelty
72.4%
§103 Obviousness
12.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18835873 ILLUMINATION SYSTEM Final Rejection Panasonic Intellectual Property Management Co., Ltd.
19126012 CONTROL APPARATUS FOR VEHICLE HEADLIGHT, CONTROL METHOD FOR VEHICLE HEADLIGHT, AND VEHICLE HEADLIGHT SYSTEM Non-Final OA Stanley Electric Co., Ltd.
18465170 VEHICLE LIGHTING DEVICE Non-Final OA HONDA MOTOR CO., LTD.
18851956 ANTENNA ELEMENT, ANTENNA SUBSTRATE, AND ANTENNA MODULE Non-Final OA KYOCERA Corporation
18694949 EDGE CAPACITIVELY COUPLED PLASMA CHAMBER STRUCTURE Non-Final OA Lam Research Corporation
19029535 MULTI-LOCATION LOAD CONTROL SYSTEM Non-Final OA Lutron Technology Company LLC
18785151 DEVICE AND METHODS FOR CHEMICAL VAPOR DEPOSITION Non-Final OA Taiwan Semiconductor Manufacturing Company, LTD.
18669718 INCREASED LIFE SUBSTRATE SUPPORT ASSEMBLY Non-Final OA Applied Materials, Inc.
19083581 PLASMA PROCESSING APPARATUS Non-Final OA Tokyo Electron Limited
18449913 SUPPLEMENTAL ADAPTABLE ENHANCEMENT OF LIGHT FUNCTIONALITY FOR ADAPTABLE DRIVING BEAM HEADLAMPS Non-Final OA GM Global Technology Operations LLC

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