Prosecution Insights
Last updated: October 26, 2026

Quanglong N Truong, USPTO Patent Examiner

Listed by the USPTO as TRUONG, QUANGLONG N

Tech Center 1600 • Art Units: 1615 1624 1626 1629 1674 1691

This examiner grants 79% of resolved cases

Analysis

TRUONG, QUANGLONG N is a USPTO patent examiner in Tech Center 1600 and art unit 1615. The examiner has 659 resolved cases, an allowance rate of 78.6%, and a median of 823 days to allowance. The interview lift is 23.3%, showing a meaningful positive association with allowance outcomes.

The listed companies are Formulated Solutions LLC, Liqmeds Worldwide Limited, and The Regents of the University of Michigan. The listed firms are HARNESS DICKEY (DETROIT), Liang & Hennessey LLP, and NORTON ROSE FULBRIGHT US LLP. Practitioners may find value in pairing technically precise amendments with interviews, particularly where the record presents opportunities to clarify claim distinctions.

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

Performance Statistics

78.6%
Allow Rate
+18.6% vs TC avg
717
Total Applications
+23.3%
Interview Lift
823
Avg Prosecution Days
Based on 659 resolved cases, 2023–2026

Rejection Statute Breakdown

4.2%
§101 Eligibility
11.1%
§102 Novelty
55.1%
§103 Obviousness
18.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18711268 BIOFILM-TARGETING NANOPARTICLES TO INCREASE THE ANTICARIES EFFECT OF FLUORIDE Non-Final OA The Regents of The University of Michigan
19020382 SUSTAINED RELEASE MELATONIN COMPOSITIONS Non-Final OA SOCIETE DES PRODUITS NESTLE S.A.
18967052 MELT PROCESSED VIRAL NANOPARTICLE CONSTRUCTS Non-Final OA CASE WESTERN RESERVE UNIVERSITY
17310241 SUNSCREEN COMPOSITIONS Non-Final OA BEIERSDORF AG

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Frequently Asked Questions

What is examiner Quanglong N Truong's allowance rate?

78.6% of resolved applications examined by Quanglong N Truong were allowed (659 resolved cases), compared with 43.4% across Art Unit 1615 over the last five years.

Does an interview help with examiner Quanglong N Truong?

This examiner's interview lift is +23.3 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Quanglong N Truong take to allow a patent?

Applications allowed by Quanglong N Truong took 823 days on average from filing to allowance.

Which art unit does examiner Quanglong N Truong work in?

Quanglong N Truong examines applications in Art Unit 1615 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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