Prosecution Insights
Last updated: October 27, 2026

King M Chu, USPTO Patent Examiner

Listed by the USPTO as CHU, KING M

Tech Center 3700 • Art Units: 3728 3733 3735 3736 3788

This examiner grants 76% of resolved cases

Analysis

CHU, KING M has resolved 1140 cases in Tech Center 3700 and Art Unit 3728. The allowance rate is 75.5%, and the median time to allowance is 833 days. The high resolved volume supports a broad outcome record, with allowance in a majority of cases and a median timeline that is comparatively contained within the supplied data.

The interview lift is 13.1%, indicating a modest measured contribution from interviews. The leading companies are Gstc LLC, Coledy Inc., and Miso Robotics Inc. The leading firms are NEO IP, Batt IP, and CANTOR COLBURN LLP. Counsel may combine efficient written prosecution with targeted interviews where claim construction or technical distinctions require direct discussion.

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

Performance Statistics

75.5%
Allow Rate
+5.5% vs TC avg
1,159
Total Applications
+13.1%
Interview Lift
833
Avg Prosecution Days
Based on 1140 resolved cases, 2023–2026

Rejection Statute Breakdown

0.5%
§101 Eligibility
25.0%
§102 Novelty
41.4%
§103 Obviousness
22.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19266938 VACUUM RETENTION SYSTEM CONTAINER HAVING VERTICAL WALLS WITH SOLID WELDS Non-Final OA GSTC LLC
19265013 VACUUM RETENTION SYSTEM CONTAINER WITH FARADAY-SHIELDING LAYER Non-Final OA GSTC LLC
19194929 COMPOSITE CASE FOR MEDICAL APPLICATIONS Final Rejection GSTC LLC

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Frequently Asked Questions

What is examiner King M Chu's allowance rate?

75.5% of resolved applications examined by King M Chu were allowed (1,140 resolved cases), compared with 0.0% across Art Unit 3728 over the last five years.

Does an interview help with examiner King M Chu?

This examiner's interview lift is +13.1 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner King M Chu take to allow a patent?

Applications allowed by King M Chu took 833 days on average from filing to allowance.

Which art unit does examiner King M Chu work in?

King M Chu examines applications in Art Unit 3728 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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