Prosecution Insights
Last updated: October 27, 2026

Cuong B Nguyen, USPTO Patent Examiner

Listed by the USPTO as NGUYEN, CUONG B

Tech Center 2800 • Art Units: 2818 2872 2892

This examiner grants 88% of resolved cases

Analysis

NGUYEN, CUONG B is assigned to Technology Center 2800 and Art Unit 2818. The record includes 983 resolved cases and an allowance rate of 88.3%, indicating a strong allowance profile supported by substantial case activity. The median time to allowance is 854 days. Applicants can use that timing point to structure prosecution budgets, continuation decisions, and expectations for commercial deployment.

Interviews are associated with a 15.3% lift in allowance outcomes. Practitioners may therefore consider interviews when technical distinctions need direct explanation, while continuing to develop a complete written record. The leading companies are Taiwan Semiconductor Manufacturing Company, Ltd., SK hynix Inc., and Rohm Co., Ltd. Leading firms are HSML P.C., BIRCH STEWART KOLASCH & BIRCH, LLP, and CANTOR COLBURN LLP.

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

Performance Statistics

88.3%
Allow Rate
+20.3% vs TC avg
1,031
Total Applications
+15.3%
Interview Lift
854
Avg Prosecution Days
Based on 983 resolved cases, 2023–2026

Rejection Statute Breakdown

1.1%
§101 Eligibility
32.1%
§102 Novelty
46.0%
§103 Obviousness
18.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18621413 SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18520166 ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE INCLUDING MEASUREMENT HOLE AND METHOD OF FABRICATING THE SAME Non-Final OA LG Display Co., Ltd.
18600773 DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF Non-Final OA Samsung Display Co., LTD.
18600532 DISPLAY PANEL AND ELECTRONIC APPARATUS INCLUDING THE SAME Non-Final OA Samsung Display Co., Ltd.
18555754 SEMICONDUCTOR DEVICE Non-Final OA SONY SEMICONDUCTOR SOLUTIONS CORPORATION
18187965 ROUNDED NANORIBBONS WITH REGROWN CAPS Final Rejection Intel Corporation
18644559 POSTS HAVING MULTIPLE WIDTHS Non-Final OA Avago Technologies International Sales Pte. Limited
19228512 MICROELECTRONIC ASSEMBLIES Non-Final OA ADEIA SEMICONDUCTOR BONDING TECHNOLOGIES INC.
18438263 SEMICONDUCTOR DEVICE Non-Final OA Kioxia Corporation
18624453 TRANSIENT VOLTAGE ABSORPTION ELEMENT Non-Final OA Murata Manufacturing Co., Ltd.
18425468 STACKED TRANSISTOR FRONTSIDE CONTACT FORMATION Non-Final OA INTERNATIONAL BUSINESS MACHINES CORPORATION
18537555 SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD OF THE SEMICONDUCTOR DEVICE Non-Final OA SK hynix Inc.
18535500 MEMORY DEVICE AND MANUFACTURING METHOD OF THE MEMORY DEVICE Non-Final OA SK hynix Inc.
18508570 IMAGE SENSING DEVICE Final Rejection SK hynix Inc.
18652315 SEMICONDUCTOR DEVICE Non-Final OA Rohm Co., Ltd.
18506359 SEMICONDUCTOR LIGHT EMITTING DEVICE AND METHOD OF MANUFACTURING THE SAME Final Rejection ROHM CO., LTD.
18480978 SEMICONDUCTOR DEVICE Final Rejection ROHM CO., LTD.
18617009 3D INTEGRATED IN-PACKAGE MAIN MEMORY Non-Final OA Meta Platforms Technologies, LLC
18434559 SEMICONDUCTOR DEVICE AND METHOD OF FORMING THEREOF Non-Final OA TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
18431140 SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF Non-Final OA TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
18425264 THERMAL CONDUCTIVE BARRIER LAYER IN INTERCONNECT STRUCTURE Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18409827 SEMICONDUCTOR STRUCTURE AND MANUFACTURING METHOD THEREOF Non-Final OA TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
17735536 MULTI-INTERPOSER STRUCTURES AND METHODS OF MAKING THE SAME Non-Final OA Taiwan Semiconductor Manufacturing Company Limited
18531368 DETECTION DEVICE AND METHOD FOR MANUFACTURING SAME Non-Final OA Magnolia White Corporation
18590048 MULTI-TIER MEMORY ARRAY INCLUDING LATERALLY-STAGGERED STAIRCASES AND METHOD OF MAKING THE SAME Non-Final OA SANDISK TECHNOLOGIES LLC
18345233 REMOVING CONDUCTIVE MATERIAL FROM A PEDESTAL OF A SEMICONDUCTOR LID OUTSIDE OF AN AREA CONTACTING A DIE Final Rejection ADVANCED MICRO DEVICES, INC.
18482163 FOUR-LAYER SEMICONDUCTOR DEVICE AND ESD PROTECTION CIRCUIT Final Rejection NEXPERIA B.V.

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Frequently Asked Questions

What is examiner Cuong B Nguyen's allowance rate?

88.3% of resolved applications examined by Cuong B Nguyen were allowed (983 resolved cases), compared with 85.2% across Art Unit 2818 over the last five years.

Does an interview help with examiner Cuong B Nguyen?

This examiner's interview lift is +15.3 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Cuong B Nguyen take to allow a patent?

Applications allowed by Cuong B Nguyen took 854 days on average from filing to allowance.

Which art unit does examiner Cuong B Nguyen work in?

Cuong B Nguyen examines applications in Art Unit 2818 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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