Prosecution Insights
Last updated: October 26, 2026

Phong H Nguyen, USPTO Patent Examiner

Listed by the USPTO as NGUYEN, PHONG H

Tech Center 3700 • Art Units: 2152 2156 2161 2162 2163 3722 3723 3724

This examiner grants 71% of resolved cases

Analysis

NGUYEN, PHONG H is a USPTO patent examiner in tech center 3700 and art unit 2152. The profile shows 1903 resolved cases and a 70.8% allowance rate. Median time to allowance is 1080 days. Interview lift is 20.6%, below the allowance rate and relevant as a supporting indicator. The large resolved-case record gives practitioners a substantial basis for examining this examiner’s prosecution patterns.

The listed companies are Nexans, Vista Studios Inc., and Connected Intelligence Systems Ltd. The leading firms are CANTOR COLBURN LLP, FOLEY & LARDNER LLP, and SHUMAKER & SIEFFERT, P. A. The 1080-day median calls for advance planning, particularly where claim scope or technical distinctions may require repeated prosecution attention.

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

Performance Statistics

70.8%
Allow Rate
+0.8% vs TC avg
1,953
Total Applications
+20.6%
Interview Lift
1080
Avg Prosecution Days
Based on 1903 resolved cases, 2023–2026

Rejection Statute Breakdown

10.0%
§101 Eligibility
21.9%
§102 Novelty
43.8%
§103 Obviousness
18.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18453365 CHISEL Final Rejection MILWAUKEE ELECTRIC TOOL CORPORATION
19296782 SYSTEMS AND METHODS FOR HOME LENDING DATA CONTROL Non-Final OA Wells Fargo Bank, N.A.
19187611 Content Generation With Generative AI Based on Mapping Proprietary Content to Non-Proprietary Content Final Rejection Oracle International Corporation
19230294 Data Analysis Method and Related Device Final Rejection Huawei Cloud Computing Technologies Co., Ltd.
18627494 DEPILATORY DEVICE Final Rejection Panasonic Intellectual Property Management Co., Ltd.
18297830 PERFORATING APPARATUS AND METHODS OF USE THEREOF Final Rejection The Procter & Gamble Company
17603499 Validation of Measurement Data Sets Using Oracle Consensus Final Rejection Siemens Aktiengesellschaft
19243805 PROCESSING APPARATUS, IMAGE FORMING APPARATUS, AND PROCESSING METHOD OF PROCESSING APPARATUS Final Rejection SHARP KABUSHIKI KAISHA
18835306 SAW DEVICE AND METHOD Non-Final OA Festool GmbH
18960454 Cable peeling based automated electrical characterization and quality control system Non-Final OA NEXANS
18955941 Cable peeling method and device for peeling a cable specimen Non-Final OA NEXANS
17957558 SPIKED PREFORM TOOLING FOR IMPROVED CHEMICAL VAPOR INFILTRATION IN CERAMIC MATRIX COMPOSITES Non-Final OA Raytheon Technologies Corporation

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Frequently Asked Questions

What is examiner Phong H Nguyen's allowance rate?

70.8% of resolved applications examined by Phong H Nguyen were allowed (1,903 resolved cases), compared with 64.7% across Art Unit 2152 over the last five years.

Does an interview help with examiner Phong H Nguyen?

This examiner's interview lift is +20.6 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Phong H Nguyen take to allow a patent?

Applications allowed by Phong H Nguyen took 1,080 days on average from filing to allowance.

Which art unit does examiner Phong H Nguyen work in?

Phong H Nguyen examines applications in Art Unit 2152 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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