Prosecution Insights
Last updated: October 27, 2026

Han Dinh Hoang, USPTO Patent Examiner

Listed by the USPTO as HOANG, HAN DINH

Tech Center 3700 • Art Units: 2661 2663 3715

This examiner grants 76% of resolved cases

Analysis

HOANG, HAN DINH is a USPTO patent examiner in Tech Center 3700 and art unit 2661. The record covers 190 resolved cases, with a 75.8% allowance rate, a 19.0% interview lift, and a median of 1074 days to allowance. These figures indicate that interviews are associated with a meaningful change in allowance outcomes, while prosecution timing remains a significant planning consideration.

The listed company activity includes Samsung Electronics Co., Ltd., Canon Inc., and Boston Scientific Corporation. The leading firms are AMPACC Law Group, PLLC, Barclay Damon, LLP, and BIRCH STEWART KOLASCH & BIRCH, LLP. Practitioners handling matters in this docket can use the profile to frame interview strategy and expected timing for similarly situated applications.

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

Performance Statistics

75.8%
Allow Rate
+5.8% vs TC avg
225
Total Applications
+19.0%
Interview Lift
1074
Avg Prosecution Days
Based on 190 resolved cases, 2023–2026

Rejection Statute Breakdown

6.8%
§101 Eligibility
14.5%
§102 Novelty
67.9%
§103 Obviousness
7.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18948517 CALIBRATION MEMBER, CALIBRATION APPARATUS, CALIBRATION METHOD, AND CALIBRATION PROGRAM Non-Final OA FUJIFILM CORPORATION
19029069 SYSTEM AND METHOD WITH MACHINE LEARNING FOR SEMICONDUCTOR WAFER DEFECT DETECTION Non-Final OA Samsung Electronics Co., Ltd.
18943372 VARIATIONAL AUTOENCODERS FOR HIGH-FIDELITY IMAGE-CONDITIONED GENERATION OR OTHER TASKS Final Rejection Samsung Electronics Co., Ltd.
19060255 IMAGE PROCESSING APPARATUS, METHOD FOR CONTROLLING IMAGE PROCESSING APPARATUS, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM Non-Final OA CANON KABUSHIKI KAISHA
18980108 MEDICAL DEVICES, SYSTEMS, AND METHODS FOR DETERMINING DIMENSIONS OF A TARGET Non-Final OA Boston Scientific Scimed, Inc.
19037426 DEGREE-OF-SIMILARITY CALCULATION SYSTEM, DEGREE-OF-SIMILARITY CALCULATION METHOD, AND STORAGE MEDIUM Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
18940304 DEPTH MAP GENERATING METHOD AND APPARATUS Non-Final OA KIA CORPORATION
18716767 AVATAR GENERATION APPARATUS Non-Final OA NTT DOCOMO, INC.
19067277 TRAINING DEVICE, TRAINING SYSTEM, MEDIUM, AND INFORMATION PROCESSING METHOD FOR TRAINING DEVICE Non-Final OA Mitsubishi Electric Corporation
18973173 METHOD AND SYSTEM FOR PROVIDING A CONTRAST AGENT ALERT Non-Final OA Siemens Healthineers AG
18999076 ELECTRONIC SYSTEM AND METHOD OF OPERATING THE SAME FOR ESTIMATING THREE-DIMENSIONAL SPACE COORDINATES OF TARGET Non-Final OA ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
18902866 PROCESSING MISSING POINTS OF A POINT CLOUD Final Rejection INTERDIGITAL VC HOLDINGS, INC.
19009223 HANDWRITING RECOGNITION USING EXTRACTED TRAJECTORY INFORMATION Non-Final OA INTERNATIONAL BUSINESS MACHINES CORPORATION
19104453 MOTION CORRECTION WITH LOCALLY LINEAR EMBEDDING FOR ULTRAHIGH RESOLUTION COMPUTED TOMOGRAPHY Non-Final OA Rensselaer Polytechnic Institute
18940029 UTILIZING A MULTI-ENCODER MULTIMODAL LANGUAGE MODEL ARCHITECTURE TO ENHANCE READING ABILITY IN GENERATING QUERY RESPONSES FROM TEXTUAL CONTENT IN DIGITAL IMAGES Final Rejection Adobe Inc.
19059620 METHODS AND APPARATUS FOR DEEP LEARNING BASED ATTENUATION CORRECTION FOR IMAGE RECONSTRUCTION Non-Final OA The Trustees of The University of Pennsylvania

Facing This Examiner?

IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.

Build Your Strategy

Who Appears Before This Examiner

Top companies before this examiner

Law firms appearing most often

Frequently Asked Questions

What is examiner Han Dinh Hoang's allowance rate?

75.8% of resolved applications examined by Han Dinh Hoang were allowed (190 resolved cases), compared with 72.7% across Art Unit 2661 over the last five years.

Does an interview help with examiner Han Dinh Hoang?

This examiner's interview lift is +19.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Han Dinh Hoang take to allow a patent?

Applications allowed by Han Dinh Hoang took 1,074 days on average from filing to allowance.

Which art unit does examiner Han Dinh Hoang work in?

Han Dinh Hoang examines applications in Art Unit 2661 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month