Prosecution Insights
Last updated: October 02, 2026

Examiner: GAN, CHUEN-MEEI

Tech Center 4100 • Art Units: 1687 2128 2129 2148 2186 2189 3665 3773 4100

This examiner grants 82% of resolved cases

Analysis

Chuen-Meei Gan serves in Tech Center 4100 and Art Unit 1687. Gan has overseen 366 resolved cases, resulting in an allowance rate of 81.7 percent. This 81.7 percent allowance rate indicates a high frequency of patent grants for applications reaching a final decision. With 366 resolved cases, the data offers a robust view of his examination outcomes.

The interview lift for Gan is 41.4 percent. This 41.4 percent lift shows a significant improvement in allowance outcomes when an interview is conducted compared to cases without an interview. Practitioners should consider an interview as a key strategy, as the 41.4 percent lift suggests it is highly effective for overcoming rejections. This data point highlights the value of direct engagement in Art Unit 1687, even with a high baseline allowance rate of 81.7 percent.

The median time to allowance is 1153 days. This 1153 day duration represents the typical timeframe from filing to issuance for successful applications. Applicants can use this 1153 day median to set realistic expectations for their prosecution timeline. The combination of an 81.7 percent allowance rate and this median pendency defines the current environment for this examiner.

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

Performance Statistics

81.7%
Allow Rate
+21.7% vs TC avg
373
Total Applications
+41.4%
Interview Lift
1153
Avg Prosecution Days
Based on 366 resolved cases, 2023–2026

Rejection Statute Breakdown

28.5%
§101 Eligibility
12.9%
§102 Novelty
37.7%
§103 Obviousness
16.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17784909 Material Development Support Apparatus, Material Development Support Method, and Material Development Support Program Non-Final OA Nippon Telegraph and Telephone Corporation
18171384 SIMULATION MODEL AUTHENTICATION Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18137990 VIL SYSTEM BASED AUTONOMOUS DRIVING FUNCTION VERIFICATION METHOD Non-Final OA Korea Electronics Technology Institute
18324815 DESIGNING A SHEET PART COMPRISING BEADS Non-Final OA DASSAULT SYSTEMES
18093778 TEST VALIDATION Final Rejection GM Cruise Holdings LLC

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