Prosecution Insights
Last updated: October 27, 2026

Phuong T Nguyen, USPTO Patent Examiner

Listed by the USPTO as NGUYEN, PHUONG T

Tech Center 3700 • Art Units: 1759 3742 3761

This examiner grants 74% of resolved cases

Analysis

NGUYEN, PHUONG T is a USPTO patent examiner in tech center 3700 and art unit 1759. The profile shows 847 resolved cases and a 74.0% allowance rate. Median time to allowance is 1191 days. Interview lift is 36.7%, below the allowance rate but significant enough to shape prosecution tactics. The figures support pairing substantive written advocacy with purposeful examiner interviews.

The main companies are LG Electronics Inc., Gigaphoton Inc., and Nicoventures Trading Limited. The leading firms are Studebaker Brackett PLLC, BIRCH STEWART KOLASCH & BIRCH, LLP, and ASEM IP COUNSEL. The 1191-day median indicates that applicants should plan for extended pendency and maintain flexibility in claim strategy.

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

Performance Statistics

74.0%
Allow Rate
+4.0% vs TC avg
899
Total Applications
+36.7%
Interview Lift
1191
Avg Prosecution Days
Based on 847 resolved cases, 2023–2026

Rejection Statute Breakdown

1.2%
§101 Eligibility
25.7%
§102 Novelty
46.9%
§103 Obviousness
18.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18564247 AEROSOL PROVISION DEVICE Non-Final OA Nicoventures Trading Limited
18289942 COOKING APPLIANCE Non-Final OA LG ELECTRONICS INC.
18276839 INDUCTION HEATING DEVICE AND METHOD FOR CONTROLLING INDUCTION HEATING DEVICE Final Rejection LG ELECTRONICS INC.
18576419 SEMICONDUCTOR LASER MODULE, LASER OSCILLATOR, AND LASER MACHINING APPARATUS Non-Final OA Mitsubishi Electric Corporation
18291556 METHOD FOR CONTROLLING MODELING DEVICE, MODELING DEVICE, AND PROGRAM Non-Final OA KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
18601093 HEATER ELEMENT ASSEMBLY Non-Final OA NGK INSULATORS, LTD.
18352992 Systems for Horizontal Additive Manufacturing and Methods Thereof Final Rejection Relativity Space, Inc.
18531410 CONTINUOUS LASER PROCESSING SYSTEM AND PROCESSING METHOD Non-Final OA INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
18599445 LASER PROCESSING METHOD AND LASER PROCESSING SYSTEM Non-Final OA Gigaphoton Inc.
18351712 LASER SYSTEM, SPECTRUM WAVEFORM CALCULATION METHOD, AND ELECTRONIC DEVICE MANUFACTURING METHOD Final Rejection Gigaphoton Inc.
18405035 Integrated Precision Weldments Non-Final OA Textron Aviation Inc.
18446052 ELECTRIC DISCHARGE MACHINING WIRE Final Rejection Proterial, Ltd.
18684705 USB POWERED HEATING PAD Non-Final OA Sunbeam Products, Inc.
18129666 Brewing Material Holder Non-Final OA Adrian Rivera Maynez Enterprises, Inc.
18219410 Electronic Device, Drying Assembly and Method Final Rejection Eberspächer catem GmbH & Co. KG

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Frequently Asked Questions

What is examiner Phuong T Nguyen's allowance rate?

74.0% of resolved applications examined by Phuong T Nguyen were allowed (847 resolved cases), compared with 69.3% across Art Unit 1759 over the last five years.

Does an interview help with examiner Phuong T Nguyen?

This examiner's interview lift is +36.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Phuong T Nguyen take to allow a patent?

Applications allowed by Phuong T Nguyen took 1,191 days on average from filing to allowance.

Which art unit does examiner Phuong T Nguyen work in?

Phuong T Nguyen examines applications in Art Unit 1759 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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