Prosecution Insights
Last updated: October 26, 2026

Donghai D Nguyen, USPTO Patent Examiner

Listed by the USPTO as NGUYEN, DONGHAI D

Tech Center 3700 • Art Units: 2837 2841 2897 3722 3729 3794

This examiner grants 76% of resolved cases

Analysis

NGUYEN, DONGHAI D is assigned to Technology Center 3700 and Art Unit 2837. The record covers 899 resolved cases and reports a 75.5% allowance rate. That result indicates a generally favorable path to allowance, while leaving room for substantive examination and claim negotiation. The median time to allowance is 1113 days, so applicants should plan around a prosecution period that may affect commercial timing.

Interviews correspond to a 29.0% lift in allowance outcomes. The result supports considering interviews when direct discussion could clarify technical distinctions or narrow disagreement over claim scope. The leading companies are Samsung Display Co., Ltd., Samsung Electronics Co., Ltd., and Seiko Epson Corporation. Leading firms are BOSE MCKINNEY & EVANS LLP, Bryan Cave Leighton Paisner LLP (DC), and Dickinson Wright PLLC - Washington DC.

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

Performance Statistics

75.5%
Allow Rate
+5.5% vs TC avg
919
Total Applications
+29.0%
Interview Lift
1113
Avg Prosecution Days
Based on 899 resolved cases, 2023–2026

Rejection Statute Breakdown

0.6%
§101 Eligibility
30.0%
§102 Novelty
49.6%
§103 Obviousness
18.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18386687 SUBSTRATE BONDING APPARATUS Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18221304 APPARATUS FOR MANUFACTURING DISPLAY APPARATUS AND METHOD OF MANUFACTURING DISPLAY APPARATUS Final Rejection Samsung Display Co., Ltd.
18089810 APPARATUS FOR MANUFACTURING DISPLAY DEVICE AND METHOD OF MANUFACTURING DISPLAY DEVICE Non-Final OA Samsung Display Co., LTD.
18475673 METHOD FOR MANUFACTURING VIBRATOR Non-Final OA SEIKO EPSON CORPORATION
18010190 ALL-SOLID-STATE BATTERY MANUFACTURING METHOD AND ALL-SOLID-STATE BATTERY MANUFACTURED THEREBY Final Rejection LG ENERGY SOLUTION, LTD.
18528741 PHASE ADJUSTMENT DEVICE AND PHASE ADJUSTMENT METHOD FOR ROTARY MACHINE Non-Final OA MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
18400597 COIL COMPONENT Non-Final OA Murata Manufacturing Co., Ltd.
18321268 PIEZOELECTRIC DEVICE HAVING PIEZOELECTRIC STRUCTURE DISPOSED BETWEEN PATTERNED CONDUCTIVE STRUCTURES Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18289017 METAL ELECTRODE PATTERNING METHOD USING PATTERN FORMATION CONTROL MATERIAL AND SUBSTRATE, ELECTRONIC DEVICE AND DISPLAY HAVING METAL ELECTRODE PATTERN Non-Final OA SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
18171000 METHOD FOR MAKING A BATTERY CAN FOR P-TYPE PRISMATIC CELLS Final Rejection GM GLOBAL TECHNOLOGY OPERATIONS LLC

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Frequently Asked Questions

What is examiner Donghai D Nguyen's allowance rate?

75.5% of resolved applications examined by Donghai D Nguyen were allowed (899 resolved cases), compared with 61.1% across Art Unit 2837 over the last five years.

Does an interview help with examiner Donghai D Nguyen?

This examiner's interview lift is +29.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Donghai D Nguyen take to allow a patent?

Applications allowed by Donghai D Nguyen took 1,113 days on average from filing to allowance.

Which art unit does examiner Donghai D Nguyen work in?

Donghai D Nguyen examines applications in Art Unit 2837 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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