Prosecution Insights
Last updated: October 02, 2026

Examiner: CHAN, CAROL WANG

Tech Center 2600 • Art Units: 2662 2666 2672

This examiner grants 84% of resolved cases

Analysis

Carol Wang Chan is an examiner in Tech Center 2600 and Art Unit 2662. The data includes 374 resolved cases. The allowance rate is 84.0 percent, which indicates the frequency of granted patents. The median days to allowance is 893, serving as a benchmark for the duration of the grant process. This 893 day figure is a key timing metric for applicants.

The interview lift is 34.6 percent. This figure suggests that an interview is associated with a 34.6 percent change in the probability of allowance. With 374 resolved cases, this lift provides a look at the impact of verbal communication. The 84.0 percent allowance rate and the 893 median days to allowance are the primary figures for developing a prosecution strategy.

The Art Unit 2662 designation and the Tech Center 2600 location form the basis for the current statistical profile. The 84.0 percent allowance rate provides a baseline for success, while the 34.6 percent interview lift highlights the impact of direct negotiation. These 374 resolved cases define the current data for this examiner.

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

Performance Statistics

84.0%
Allow Rate
+22.0% vs TC avg
379
Total Applications
+34.6%
Interview Lift
893
Avg Prosecution Days
Based on 374 resolved cases, 2023–2026

Rejection Statute Breakdown

11.7%
§101 Eligibility
16.3%
§102 Novelty
40.4%
§103 Obviousness
25.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18808585 VEHICLE IDENTIFICATION SYSTEM Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
18912721 IMAGE PRESENTATION DEVICE, IMAGE PRESENTATION METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM STORING PROGRAM Non-Final OA NEC Corporation
18819450 CHARACTER RECOGNITION DEVICE, CHARACTER RECOGNITION METHOD, CHARACTER RECOGNITION SYSTEM Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
18854090 DEVICE-LESS MOTION STATE ESTIMATION Non-Final OA KONINKLIJKE PHILIPS N.V.
18655798 AUTOMATED ENGINE BLADE INSPECTION METHODS AND SYSTEM Final Rejection RTX Corporation
18194536 METHODS AND APPARATUS FOR PERFORMING ANALYTICS ON IMAGE DATA Final Rejection Micron Technology, Inc.
18941745 SYSTEM FOR VASCULAR ASSESSMENT Non-Final OA CathWorks Ltd.
18389049 NON-CONTRASTIVE UNSUPERVISED LEARNING OF PHYSIOLOGICAL SIGNALS FROM VIDEO Final Rejection University of Notre Dame du Lac
18493274 Tracking Objects in Image Frames Non-Final OA AUTOBRAINS TECHNOLOGIES LTD.

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