Prosecution Insights
Last updated: October 27, 2026

Henry H Nguyen, USPTO Patent Examiner

Listed by the USPTO as NGUYEN, HENRY H

Tech Center 3700 • Art Units: 1656 1657 1674 1681 1758 1796 1798 3753

This examiner grants 64% of resolved cases

Analysis

NGUYEN, HENRY H is assigned to tech center 3700 and art unit 1656. The record covers 296 resolved cases, with a 63.5% allowance rate. The 36.7% interview lift indicates that interview participation is associated with a meaningful increase in allowance outcomes in this dataset. The median time to allowance is 1208 days, so prosecution planning should account for a substantial examination timeline.

The company mix includes Fujifilm Corporation, Hitachi Ltd., and University of Florida Research Foundation Inc. The leading firms are Knobbe, Martens, Olson & Bear, LLP, MARSHALL, GERSTEIN & BORUN LLP, and Meunier Carlin & Curfman LLC. For practitioners, the combination of the interview result and the allowance timing supports early consideration of interview strategy, while the resolved-case volume provides a useful basis for evaluating recurring prosecution patterns.

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

Performance Statistics

63.5%
Allow Rate
-6.5% vs TC avg
397
Total Applications
+36.7%
Interview Lift
1208
Avg Prosecution Days
Based on 296 resolved cases, 2023–2026

Rejection Statute Breakdown

3.4%
§101 Eligibility
20.9%
§102 Novelty
42.7%
§103 Obviousness
29.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17565972 CELLULAR MICRO-MASONRY SYSTEM Final Rejection University of Florida Research Foundation, Inc.
18473125 ASSAY CARTRIDGE Non-Final OA FUJIFILM Corporation
18167084 MICROCHANNEL DEVICE, PRODUCTION METHOD FOR OIL DROPLET, PRODUCTION METHOD FOR AIR BUBBLE, PRODUCTION METHOD FOR MICROCAPSULE, PRODUCTION METHOD FOR MULTIPLE EMULSION, PRODUCTION METHOD FOR LIQUID DROPLET THAT ENCOMPASSES AIR BUBBLE, AND MANUFACTURING METHOD FOR MICROCHANNEL DEVICE Non-Final OA FUJIFILM CORPORATION
18168601 NUCLEIC ACID ANALYSIS DEVICE, AND NUCLEIC ACID ANALYSIS METHOD Non-Final OA CANON KABUSHIKI KAISHA
17451082 Robotic method for coating a multiwell plate by a polyelectrolyte multilayer film Final Rejection Centre national de la recherche scientifique
18177504 DEVICES, SYSTEMS, AND METHODS FOR HIGH THROUGHPUT DROPLET FORMATION Final Rejection 10x Genomics, Inc.
18639488 TRACER PARTICLES AND RELATED METHODS Non-Final OA Saudi Arabian Oil Company
17560926 APPARATUS AND METHOD FOR DIFFERENTIATING BETWEEN SYMPTOMS OF HEART ATTACK AND GERD Non-Final OA Micron Technology, Inc.
18680555 CURVILINEAR FLUIDIC DEVICE Non-Final OA The Regents of the University of California
17907328 OPTICAL MODULE Final Rejection ams-Osram AG
18037229 OPEN-WELL MICROCAVITY PLATE Non-Final OA CORNING INCORPORATED
18262559 NOZZLE, CARRIER, NOZZLE ASSEMBLY, AND SAMPLE PROCESSOR Final Rejection BECKMAN COULTER, INC.
18710305 AUTOMATIC ANALYSIS DEVICE Non-Final OA HITACHI HIGH-TECH CORPORATION
18560428 Sample Conveying Device, Sample Analysis System, and Method for Conveying Sample Non-Final OA Hitachi High-Tech Corporation
18497541 METHODS FOR ASSESSING CELLULAR OR TISSUE INJURY USING MITOCHONDRIAL AND/OR NUCLEAR CELL-FREE DNA Non-Final OA The Medical College of Wisconsin Inc.
18316148 NOBLE METAL-CONTAINING COMPOUND DETECTION BY CATALYSIS OF OPTICAL DYE REDUCTION Non-Final OA Becton, Dickinson and Company
18114675 PHOTO REACTOR FOR TETRAHYDROCANNABINOL (THC) TESTING Non-Final OA Purdue Research Foundation
17375855 KIT FOR INSTALLING IMPELLER INTO PROCESS VESSEL Final Rejection ENTEGRIS, INC.
18438239 DISPENSING DEVICE AND DISPENSING METHOD Non-Final OA SHIMADZU CORPORATION
17754114 System for Sensing a Molecule Final Rejection Northeastern University
17614827 METHOD FOR DETECTING TARGET NUCLEIC ACID IN SAMPLE Final Rejection SEEGENE, INC.
17923252 MICROFLUIDIC MIXING DEVICE AND METHODS OF USE Non-Final OA GLAXOSMITHKLINE BIOLOGICALS SA

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Frequently Asked Questions

What is examiner Henry H Nguyen's allowance rate?

63.5% of resolved applications examined by Henry H Nguyen were allowed (296 resolved cases), compared with 44.5% across Art Unit 1656 over the last five years.

Does an interview help with examiner Henry H 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 Henry H Nguyen take to allow a patent?

Applications allowed by Henry H Nguyen took 1,208 days on average from filing to allowance.

Which art unit does examiner Henry H Nguyen work in?

Henry H Nguyen examines applications in Art Unit 1656 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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