Prosecution Insights
Last updated: October 25, 2026

Kent Wu Chang, USPTO Patent Examiner

Listed by the USPTO as CHANG, KENT WU

Tech Center 2600 • Art Units: 2614 2617 2624

This examiner grants 18% of resolved cases

Analysis

CHANG, KENT WU is assigned to tech center 2600 and art unit 2614. The profile covers 40 resolved cases, with a 17.5% allowance rate and a median of 1218 days to allowance. The relatively small case record calls for caution when using these figures to predict outcomes, while the allowance result indicates that many matters did not reach allowance in the recorded sample.

The interview lift is 0.0%, so the data does not show an allowance-rate change associated with interviews. Shining 3D Tech is the only listed company, and no leading firms are identified. For practitioners, the limited sample and absence of firm activity make application-specific analysis, detailed claim drafting, and direct review of prosecution history especially important.

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

Performance Statistics

17.5%
Allow Rate
-44.5% vs TC avg
48
Total Applications
+0.0%
Interview Lift
1218
Avg Prosecution Days
Based on 40 resolved cases, 2023–2026

Rejection Statute Breakdown

2.9%
§101 Eligibility
26.6%
§102 Novelty
63.3%
§103 Obviousness
5.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19102719 Method, Apparatus and System for Three-Dimensional Reconstruction Non-Final OA Shining 3D Tech Co., Ltd.

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Frequently Asked Questions

What is examiner Kent Wu Chang's allowance rate?

17.5% of resolved applications examined by Kent Wu Chang were allowed (40 resolved cases), compared with 66.9% across Art Unit 2614 over the last five years.

Does an interview help with examiner Kent Wu Chang?

This examiner's interview lift is +0.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Kent Wu Chang take to allow a patent?

Applications allowed by Kent Wu Chang took 1,218 days on average from filing to allowance.

Which art unit does examiner Kent Wu Chang work in?

Kent Wu Chang examines applications in Art Unit 2614 in Tech Center 2600 (Communications).

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