Prosecution Insights
Last updated: October 27, 2026

Phuong N Huynh, USPTO Patent Examiner

Listed by the USPTO as HUYNH, PHUONG N

Tech Center 1600 • Art Units: 1641 1643 1644

This examiner grants 66% of resolved cases

Analysis

HUYNH, PHUONG N is an examiner in tech center 1600 and art unit 1641. The profile records 1350 resolved cases, a 65.8% allowance rate, and a median of 1140 days to allowance. Its 53.6% interview lift is a substantial positive signal within this record, indicating that interview participation is closely associated with improved allowance outcomes.

The principal companies are Hoffmann-La Roche Inc., Janssen Pharmaceuticals Inc., and The University of Toledo. The listed firms are Knobbe, Martens, Olson & Bear, LLP, Ipsilon USA - NLO, and Lathrop GPM LLP | Sanofi-Aventis. Applicants may benefit from planning interviews early enough to address examination concerns before prosecution becomes prolonged, while preserving clear technical and legal support for any amendments.

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

Performance Statistics

65.8%
Allow Rate
+5.8% vs TC avg
1,423
Total Applications
+53.6%
Interview Lift
1140
Avg Prosecution Days
Based on 1350 resolved cases, 2023–2026

Rejection Statute Breakdown

1.1%
§101 Eligibility
14.5%
§102 Novelty
25.3%
§103 Obviousness
40.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18282503 CHIMERIC PHAGOCYTIC RECEPTORS FOR TREATMENT OF NEURODEGENERATIVE DISORDERS Final Rejection University of Florida Research Foundation, Incorporated
18430887 METHOD FOR DETERMINING THE AMOUNT OF A THERAPEUTIC ANTIBODY IN THE BRAIN Non-Final OA Hoffmann-La Roche Inc.
17507029 THERAPEUTIC MULTISPECIFIC POLYPEPTIDES ACTIVATED BY POLYPEPTIDE CHAIN EXCHANGE Non-Final OA Hoffmann-La Roche Inc.
17507511 ACTIVATABLE THERAPEUTIC MULTISPECIFIC POLYPEPTIDES WITH EXTENDED HALF-LIFE Non-Final OA Hoffmann-La Roche Inc.
17335702 AFFINITY CHROMATOGRAPHY PURIFICATION WITH LOW CONDUCTIVITY WASH BUFFER Non-Final OA Hoffmann-La Roche Inc.
17628418 COMPOSITIONS AND METHODS FOR TREATING AUTOIMMUNE DISORDERS Final Rejection The Regents of the University of Michigan
18178886 SPECIFIC SITES FOR MODIFYING ANTIBODIES TO MAKE IMMUNOCONJUGATES Non-Final OA Novartis AG
13885646 AGENTS AND METHODS FOR TREATING DISEASES THAT CORRELATE WITH BCMA EXPRESSION Non-Final OA BOEHRINGER INGELHEIM INTERNATIONAL GMBH
17771227 COMBINED INHIBITION OF PD-1, TGFB AND TIGIT FOR THE TREATMENT OF CANCER Non-Final OA MERCK PATENT GmbH
18210604 ASSEMBLY OF BISPECIFIC ANTIBODIES Final Rejection Genentech, Inc.
18509030 COMPOSITIONS AND METHODS FOR FIBROBLAST GROWTH FACTOR RECEPTOR 3-MEDIATED DELIVERY TO ASTROCYTES Non-Final OA Regeneron Pharmaceuticals, Inc.
18702244 HUMAN FC VARIANTS HAVING IMPROVED FCrRIIA BINDING SELECTIVITY Non-Final OA Korea University Research and Business Foundation
18248345 RATIONAL SELECTION OF BUILDING BLOCKS FOR THE ASSEMBLY OF MULTISPECIFIC ANTIBODIES Non-Final OA AMGEN INC.
18256916 HUMAN CHIMERIC ANTIGEN RECEPTOR NEUTROPHILS, COMPOSITIONS, KITS AND METHODS OF USE Non-Final OA Purdue Research Foundation
17961761 NANOPARTICLE IMMUNOCONJUGATES Final Rejection The Curators of the University of Missouri
18298743 METHOD FOR ALTERING PLASMA RETENTION AND IMMUNOGENICITY OF ANTIGEN-BINDING MOLECULE Non-Final OA Chugai Seiyaku Kabushiki Kaisha
18185465 PSEUDOFAB-BASED MULTISPECIFIC BINDING PROTEINS Final Rejection SANOFI
17782980 ANTI-CLAUDIN ANTIBODY-DRUG CONJUGATE AND PHARMACEUTICAL USE THEREOF Non-Final OA SHANGHAI HENGRUI PHARMACEUTICAL CO., LTD.
18024486 METHODS OF PREPARING PROTEIN-OLIGONUCLEOTIDE COMPLEXES Final Rejection Dyne Therapeutics, Inc.

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Frequently Asked Questions

What is examiner Phuong N Huynh's allowance rate?

65.8% of resolved applications examined by Phuong N Huynh were allowed (1,350 resolved cases), compared with 45.2% across Art Unit 1641 over the last five years.

Does an interview help with examiner Phuong N Huynh?

This examiner's interview lift is +53.6 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Phuong N Huynh take to allow a patent?

Applications allowed by Phuong N Huynh took 1,140 days on average from filing to allowance.

Which art unit does examiner Phuong N Huynh work in?

Phuong N Huynh examines applications in Art Unit 1641 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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