Prosecution Insights
Last updated: October 26, 2026

Hung D Nguyen, USPTO Patent Examiner

Listed by the USPTO as NGUYEN, HUNG D

Tech Center 3700 • Art Units: 1742 1791 3742 3761

This examiner grants 71% of resolved cases

Analysis

NGUYEN, HUNG D is assigned to tech center 3700 and art unit 1742. The profile includes 1067 resolved cases and a 71.4% allowance rate. The 30.2% interview lift indicates a significant positive association between interviews and allowance outcomes. The median time to allowance is 1237 days, so the potential value of interview practice should be balanced against a prosecution timeline that may extend well beyond a single examination cycle.

The listed companies are Nestlé S.A., Furukawa Electric Co., Ltd., and Hamilton Beach Brands Inc. The leading firms are Barron & Young PLLC, Chrisman Gallo Tochtrop LLC, and Dickinson Wright PLLC - Washington DC. Practitioners may give interviews early strategic attention, particularly where claim scope can be clarified directly. The resolved-case volume is sufficient to make the recorded allowance and timing signals useful for planning.

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

Performance Statistics

71.4%
Allow Rate
+1.4% vs TC avg
1,085
Total Applications
+30.2%
Interview Lift
1237
Avg Prosecution Days
Based on 1067 resolved cases, 2023–2026

Rejection Statute Breakdown

1.3%
§101 Eligibility
20.9%
§102 Novelty
55.0%
§103 Obviousness
20.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18721992 BEVERAGE PREPARATION BY CENTRIFUGATION WITH RELIABLE CAPSULE TRANSFER Non-Final OA SOCIÉTÉ DES PRODUITS NESTLÉ S.A.
18199534 HOUSEHOLD APPLIANCE WITH IMMERSIBLE HEATER Final Rejection WHIRLPOOL CORPORATION
18290497 LASER PROCESSING APPARATUS AND LASER PROCESSING METHOD Non-Final OA FURUKAWA ELECTRIC CO., LTD.

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Frequently Asked Questions

What is examiner Hung D Nguyen's allowance rate?

71.4% of resolved applications examined by Hung D Nguyen were allowed (1,067 resolved cases), compared with 58.3% across Art Unit 1742 over the last five years.

Does an interview help with examiner Hung D Nguyen?

This examiner's interview lift is +30.2 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Hung D Nguyen take to allow a patent?

Applications allowed by Hung D Nguyen took 1,237 days on average from filing to allowance.

Which art unit does examiner Hung D Nguyen work in?

Hung D Nguyen examines applications in Art Unit 1742 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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