Prosecution Insights
Last updated: October 27, 2026

Henry K Nguyen, USPTO Patent Examiner

Listed by the USPTO as NGUYEN, HENRY K

Tech Center 2100 • Art Units: 2121 2147

This examiner grants 59% of resolved cases

Analysis

NGUYEN, HENRY K is assigned to tech center 2100 and art unit 2121. The profile includes 167 resolved cases and a 59.3% allowance rate. Interviews are associated with a 26.5% lift in allowance outcomes. The median time to allowance is 1641 days, making timing a central consideration when setting client expectations and planning continuation or foreign filing decisions.

The listed companies are International Business Machines Corporation, Google LLC, and NEC Corporation. The leading firms are CHIP LAW GROUP and Li & Cai Intellectual Property(USA) office. The combination of a moderate allowance rate, a positive interview lift, and the recorded pendency supports a prosecution approach that treats interviews as a potentially useful procedural step while preserving time for substantive claim development.

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

Performance Statistics

59.3%
Allow Rate
+4.3% vs TC avg
193
Total Applications
+26.5%
Interview Lift
1641
Avg Prosecution Days
Based on 167 resolved cases, 2023–2026

Rejection Statute Breakdown

21.2%
§101 Eligibility
7.9%
§102 Novelty
53.2%
§103 Obviousness
12.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17216891 Partially customized machine learning models for data de-identification Non-Final OA Google LLC
18022720 INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND RECORDING MEDIUM Final Rejection NEC Corporation
17218035 TRAINING AND SCORING FOR LARGE NUMBER OF PERFORMANCE MODELS Non-Final OA International Business Machines Corporation
15010439 NUMERICAL EXPRESSION ANALYSIS Final Rejection International Business Machines Corporation
18099631 SUSTAINABLE CONTINUAL LEARNING WITH DETECTION AND KNOWLEDGE REPURPOSING OF SIMILAR TASKS Non-Final OA Duke University

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Frequently Asked Questions

What is examiner Henry K Nguyen's allowance rate?

59.3% of resolved applications examined by Henry K Nguyen were allowed (167 resolved cases), compared with 32.0% across Art Unit 2121 over the last five years.

Does an interview help with examiner Henry K Nguyen?

This examiner's interview lift is +26.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Henry K Nguyen take to allow a patent?

Applications allowed by Henry K Nguyen took 1,641 days on average from filing to allowance.

Which art unit does examiner Henry K Nguyen work in?

Henry K Nguyen examines applications in Art Unit 2121 in Tech Center 2100 (Computing & Software).

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