Prosecution Insights
Last updated: October 26, 2026

Phu Hoang Nguyen, USPTO Patent Examiner

Listed by the USPTO as NGUYEN, PHU HOANG

Tech Center 1700 • Art Units: 1700 1747 1791 1798

This examiner grants 66% of resolved cases

Analysis

NGUYEN, PHU HOANG is a USPTO patent examiner in tech center 1700 and art unit 1700. The record includes 714 resolved cases and a 66.0% allowance rate. Median time to allowance is 1421 days. Interview lift is 19.6%, below the allowance rate but relevant to case management. The profile indicates that applicants should prepare for a lengthy examination path and maintain a disciplined approach to written claim development.

The main companies are Nicoventures Trading Limited, Philip Morris International Inc., and KT&G Corporation. The principal firms are MERCHANT & GOULD P.C. - BAT, Burr & Forman LLP (Primary Customer Number), and OBLON, MCCLELLAND, MAIER & NEUSTADT, L.L.P. The 1421-day median makes early prosecution planning especially important.

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

Performance Statistics

66.0%
Allow Rate
+1.0% vs TC avg
772
Total Applications
+19.6%
Interview Lift
1421
Avg Prosecution Days
Based on 714 resolved cases, 2023–2026

Rejection Statute Breakdown

0.4%
§101 Eligibility
12.6%
§102 Novelty
52.9%
§103 Obviousness
19.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18698189 AEROSOL PROVISION DEVICE WITH A MOISTURE SENSOR Non-Final OA NICOVENTURES TRADING LIMITED
18573854 AN ARTICLE FOR USE WITH A NON-COMBUSTIBLE AEROSOL PROVISION DEVICE Non-Final OA Nicoventures Trading Limited
18571362 ARTICLE FOR USE IN A NON-COMBUSTIBLE AEROSOL PROVISION SYSTEM Non-Final OA Nicoventures Trading Limited
18342904 INSULATING Final Rejection Nicoventures Trading Limited
18247652 A CONTROLLER FOR A NON-COMBUSTIBLE AEROSOL PROVISION SYSTEM, APPARATUS FOR A NON-COMBUSTIBLE AEROSOL PROVISION SYSTEM, AND A NON-COMBUSTIBLE AEROSOL PROVISION DEVICE AND SYSTEM Final Rejection Nicoventures Trading Limited
18245302 AEROSOL PROVISION SYSTEM Non-Final OA Nicoventures Trading Limited
17754899 SYSTEM AND METHOD OF AEROSOL DELIVERY Non-Final OA Nicoventures Trading Limited
17611065 CLEANING ASSEMBLY Non-Final OA Nicoventures Trading Limited
15733690 ELECTRONIC AEROSOL PROVISION SYSTEM Final Rejection NICOVENTURES TRADING LIMITED
18833629 Heating Apparatus for an Aerosol Generating Device Non-Final OA JT International SA
18031788 Vaporizer, Consumable Container Therefor, Vaporizer System Thereof, and Methods of Obtaining Information About a Consumable Container and Providing a Vaporizer System Final Rejection JT International SA
18715867 METHOD FOR MANUFACTURING A VENTILATION ZONE IN AN AEROSOL-GENERATING ARTICLE Non-Final OA PHILIP MORRIS PRODUCTS S.A.
18705149 AEROSOL-GENERATING DEVICE WITH AMBIENT AIR ADAPTION Non-Final OA Philip Morris Products S.A.
18702016 HEATING ASSEMBLY FOR AEROSOL-GENERATING DEVICE Non-Final OA Philip Morris Products S.A.
18701271 AEROSOL GENERATING ARTICLE COMPRISING A HEAT-INSULATING SLEEVE Non-Final OA Philip Morris Products S.A.
18285552 MOVING BETWEEN CONSUMPTION POSITION AND STORAGE POSITION IN AEROSOL-GENERATING DEVICE Non-Final OA PHILIP MORRIS PRODUCTS S.A.
18255596 AN AEROSOL-GENERATING SYSTEM COMPRISING AN ELECTROCHEMICAL SENSOR SWITCH Final Rejection Philip Morris Products S.A.
18114066 SMOKING COMPOSITION COMPRISING FLAVOUR PRECURSOR Non-Final OA PHILIP MORRIS PRODUCTS S.A.
18705048 AEROSOL GENERATING DEVICE Non-Final OA KT&G CORPORATION
18284267 AEROSOL-GENERATING ARTICLE AND AEROSOL-GENERATING DEVICE HAVING SAME Final Rejection KT&G CORPORATION
18269181 HEATING STRUCTURE AND AEROSOL GENERATING DEVICE INCLUDING THE SAME Final Rejection KT&G CORPORATION
18033902 METHOD FOR MANUFACTURING COMBUSTIBLE HEAT SOURCE FOR SMOKING ARTICLE AND SMOKING ARTICLE COMPRISING COMBUSTIBLE HEAT SOURCE Non-Final OA KT&G CORPORATION

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Frequently Asked Questions

What is examiner Phu Hoang Nguyen's allowance rate?

66.0% of resolved applications examined by Phu Hoang Nguyen were allowed (714 resolved cases), compared with 40.4% across Art Unit 1700 over the last five years.

Does an interview help with examiner Phu Hoang Nguyen?

This examiner's interview lift is +19.6 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Phu Hoang Nguyen take to allow a patent?

Applications allowed by Phu Hoang Nguyen took 1,421 days on average from filing to allowance.

Which art unit does examiner Phu Hoang Nguyen work in?

Phu Hoang Nguyen examines applications in Art Unit 1700 in Tech Center 1700 (Chemistry & Materials).

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