Prosecution Insights
Last updated: October 27, 2026

Nghi V Nguyen, USPTO Patent Examiner

Listed by the USPTO as NGUYEN, NGHI V

Tech Center 1600 • Art Units: 1641 1653 1657 1699

This examiner grants 54% of resolved cases

Analysis

NGUYEN, NGHI V is a USPTO patent examiner in tech center 1600 and art unit 1641. The record includes 494 resolved cases and a 53.6% allowance rate. Median time to allowance is 1318 days. Interview lift is 50.8%, nearly matching the allowance rate and standing out as an important prosecution signal. The figures support integrating interview planning with written responses and claim amendments.

The main company filers are Wisconsin Alumni Research Foundation, Ricoh Company, Ltd., and Kaneka Corporation. The leading firms are BIRCH STEWART KOLASCH & BIRCH, LLP, Knobbe, Martens, Olson & Bear, LLP, and MORRISON & FOERSTER LLP. The 1318-day median indicates that applicants should preserve flexibility for a longer prosecution course and set expectations accordingly.

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

Performance Statistics

53.6%
Allow Rate
-6.4% vs TC avg
542
Total Applications
+50.8%
Interview Lift
1318
Avg Prosecution Days
Based on 494 resolved cases, 2023–2026

Rejection Statute Breakdown

5.5%
§101 Eligibility
18.2%
§102 Novelty
45.4%
§103 Obviousness
17.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18728767 CELL CULTURE METHODS Non-Final OA THE UNIVERSITY OF MASSACHUSETTS
18375035 A METHOD OF PRODUCING A CARDIOMYOCYTE SPHEROID Final Rejection KANEKA CORPORATION
18310510 GENERATING ARTERIAL ENDOTHELIAL CELL POPULATIONS Final Rejection WISCONSIN ALUMNI RESEARCH FOUNDATION
17609064 WASHED PLATELET EXTRACT Final Rejection WISCONSIN ALUMNI RESEARCH FOUNDATION
17908810 METHODS AND SYSTEMS TO PRINT AND MATURE TISSUES OVER TIME IN A THREE-DIMENSIONAL SUPPORT MATRIX Non-Final OA The General Hospital Corporation
17434912 A NUTRITIONAL COMPOSITION FOR USE TO ENHANCE EXECUTIVE FUNCTION Non-Final OA SOCIETE DES PRODUITS NESTLE S.A.
17479037 CELL CULTURE CARRIER, AND METHOD AND DEVICE FOR PRODUCING SAME Non-Final OA RICOH COMPANY, LTD.
18270368 Use of Fibroblast Growth Factor-8 For Tissue Regeneration Non-Final OA UNIVERSITY OF CONNECTICUT
18026991 NERVE FASCICLE AND METHOD OF PRODUCING NERVE FASCICLE Final Rejection University of Tsukuba
18553584 IMMUNE MODULATORY PARACRINE ACTING CELLS (IMPACS) Non-Final OA Temple University - of the Commonwealth System of Higher Education
17769663 BIOLOGICALLY SYNTHESIZED HYDROXYAPATITE FOR BONE REGENERATION AND TISSUE ENGINEERING Final Rejection BIOVENTURES, LLC
18368070 METHODS AND COMPOSITIONS FOR IN-VITRO AUGMENTATION OF MILK PRODUCTION FROM MAMMARY EPITHELIAL CELLS Final Rejection Yissum Research Development Company of the Hebrew University of Jerusalem Ltd.

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Frequently Asked Questions

What is examiner Nghi V Nguyen's allowance rate?

53.6% of resolved applications examined by Nghi V Nguyen were allowed (494 resolved cases), compared with 45.2% across Art Unit 1641 over the last five years.

Does an interview help with examiner Nghi V Nguyen?

This examiner's interview lift is +50.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Nghi V Nguyen take to allow a patent?

Applications allowed by Nghi V Nguyen took 1,318 days on average from filing to allowance.

Which art unit does examiner Nghi V Nguyen work in?

Nghi V Nguyen examines applications in Art Unit 1641 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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