Prosecution Insights
Last updated: October 26, 2026

Jack Dinh, USPTO Patent Examiner

Listed by the USPTO as DINH, JACK

Tech Center 2800 • Art Units: 2812 2872 2873

This examiner grants 85% of resolved cases

Analysis

DINH, JACK has resolved 667 cases in Tech Center 2800 and Art Unit 2812. The allowance rate is 85.0%, and the median time to allowance is 938 days. The interview lift is 6.5%, indicating a positive but limited association between interviews and allowance.

The recorded companies are TOPCON Corporation, Samsung Electro-Mechanics Co., Ltd., and Canon Inc. The listed firms are NSIP LAW, Crowell, and Knobbe, Martens, Olson & Bear, LLP. The substantial case history supports using the favorable allowance rate as a practical planning signal while recognizing the recorded timing measure.

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

Performance Statistics

85.0%
Allow Rate
+17.0% vs TC avg
688
Total Applications
+6.5%
Interview Lift
938
Avg Prosecution Days
Based on 667 resolved cases, 2023–2026

Rejection Statute Breakdown

5.6%
§101 Eligibility
40.4%
§102 Novelty
27.3%
§103 Obviousness
22.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17947661 METHOD AND SYSTEM FOR MONITORING CORNEAL TISSUE HEALTH Final Rejection The Johns Hopkins University
18630524 LENS MODULE Final Rejection Samsung Electro-Mechanics Co., Ltd.
17678462 OPTICAL IMAGING SYSTEM Final Rejection SAMSUNG ELECTRO-MECHANICS CO., LTD.

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Frequently Asked Questions

What is examiner Jack Dinh's allowance rate?

85.0% of resolved applications examined by Jack Dinh were allowed (667 resolved cases), compared with 82.1% across Art Unit 2812 over the last five years.

Does an interview help with examiner Jack Dinh?

This examiner's interview lift is +6.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Jack Dinh take to allow a patent?

Applications allowed by Jack Dinh took 938 days on average from filing to allowance.

Which art unit does examiner Jack Dinh work in?

Jack Dinh examines applications in Art Unit 2812 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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