Prosecution Insights
Last updated: October 27, 2026

Hien Luongvan Duong, USPTO Patent Examiner

Listed by the USPTO as DUONG, HIEN LUONGVAN

Tech Center 4100 • Art Units: 2147 2164 2175 3656 4100

This examiner grants 75% of resolved cases

Analysis

DUONG, HIEN LUONGVAN is a USPTO patent examiner in tech center 4100 and art unit 2147. The profile includes 667 resolved cases, a 75.0% allowance rate, and a median of 1092 days to allowance. Interviews have a 23.3% lift, indicating a positive association that supports considering examiner engagement.

The listed companies are Google LLC, Hoffmann-La Roche Inc., and Samsung Electronics Co., Ltd. The listed firms are ALSTON & BIRD LLP, ABB - Whitmyer IP Group LLC, and FOLEY & LARDNER LLP. Counsel can use the substantial resolved-case record to inform claim drafting, response sequencing, and decisions about when an interview may clarify disputed issues.

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

Performance Statistics

75.0%
Allow Rate
+15.0% vs TC avg
706
Total Applications
+23.3%
Interview Lift
1092
Avg Prosecution Days
Based on 667 resolved cases, 2023–2026

Rejection Statute Breakdown

12.0%
§101 Eligibility
17.1%
§102 Novelty
56.0%
§103 Obviousness
7.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18581036 METHOD FOR CLASSIFYING QUALITY OF BIOLOGICAL SENSOR DATA Non-Final OA Hoffmann-La Roche Inc.
18582246 SYSTEMS AND METHODS FOR PREDICTING A SET OF PROBABLE CLASSES FOR TEST DATA Non-Final OA Samsung Electronics Co., Ltd.
17651412 SYSTEMS AND METHODS FOR CONTROLLING A SURGICAL PUMP USING ENDOSCOPIC VIDEO DATA Non-Final OA Stryker Corporation
17745715 NEURAL NETWORKS WITH FEEDFORWARD SPATIAL TRANSFORMATION UNITS Final Rejection Google LLC
17541091 METHOD(S) AND SYSTEM(S) FOR IMPROVED EFFICIENCY IN FEDERATED LEARNING OF MACHINE LEARNING MODEL(S) Final Rejection GOOGLE LLC
17987905 ARTIFICIAL INTELLIGENCE MODEL CONTROL SYSTEM Non-Final OA ASUSTeK COMPUTER INC.
18087586 GENERATING OBJECT DATA USING A DIFFUSION MODEL Non-Final OA Zoox, Inc.
18381394 FEDERATED LEARNING SYSTEM, FEDERATED LEARNING METHOD, AND FEDERATED LEARNING PROGRAM Non-Final OA Hitachi, Ltd.
17730436 UNIFICATION OF SPECIALIZED MACHINE-LEARNING MODELS FOR EFFICIENT OBJECT DETECTION AND CLASSIFICATION Final Rejection Waymo LLC
18342469 GENERATING AND PROVIDING MORPHING ASSISTANT INTERFACES THAT TRANSFORM ACCORDING TO ARTIFICIAL INTELLIGENCE SIGNALS Final Rejection Dropbox, Inc.
18731902 SYSTEMS AND METHODS FOR SPARSE DATA MACHINE LEARNING Non-Final OA Walmart Apollo, LLC
18279362 METHOD AND APPARATUS FOR ENABLING ARTIFICIAL INTELLIGENCE SERVICE IN M2M SYSTEM Final Rejection Industry Academy Cooperation Foundation of Sejong University
18225970 INSTANCE RECOMMENDATIONS FOR MACHINE LEARNING WORKLOADS Final Rejection ADOBE INC.
18271212 METHOD FOR SEARCHING FOR NOVOLAC PHENOL RESIN, INFORMATION PROCESSING DEVICE, AND NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM Final Rejection DIC Corporation
18522910 SYSTEM AND METHOD OF CREATING INTERPRETABLE LATENT REPRESENTATIONS OF AN ARTIFICIAL INTELLIGENCE MODEL Non-Final OA AUTOBRAINS TECHNOLOGIES LTD.

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Frequently Asked Questions

What is examiner Hien Luongvan Duong's allowance rate?

75.0% of resolved applications examined by Hien Luongvan Duong were allowed (667 resolved cases), compared with 47.4% across Art Unit 2147 over the last five years.

Does an interview help with examiner Hien Luongvan Duong?

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 Hien Luongvan Duong take to allow a patent?

Applications allowed by Hien Luongvan Duong took 1,092 days on average from filing to allowance.

Which art unit does examiner Hien Luongvan Duong work in?

Hien Luongvan Duong examines applications in Art Unit 2147 in Tech Center 4100.

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