Prosecution Insights
Last updated: October 27, 2026

Duy Vu Nguyen Deo, USPTO Patent Examiner

Listed by the USPTO as DEO, DUY VU NGUYEN

Tech Center 2800 • Art Units: 1713 1716 1765 1792 1794 2817

This examiner grants 82% of resolved cases

Analysis

DEO, DUY VU NGUYEN is assigned to Tech Center 2800 and Art Unit 1713. The record contains 1055 resolved cases, an 82.5% allowance rate, and a median of 873 days to allowance. The 7.3% interview lift is positive but modest relative to the overall allowance rate, so interviews appear to be a supporting rather than defining feature of this profile.

The listed companies are Tokyo Electron Limited, RESONAC Corporation, and Samsung Electronics Co., Ltd. The listed firms are BIRCH STEWART KOLASCH & BIRCH, LLP, FITCH, EVEN, TABIN & FLANNERY, LLP, and IPUSA, P.L.L.C. The data supports careful claim presentation and docket planning, with a substantial allowance history but a median timeline that still requires attention.

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

Performance Statistics

82.5%
Allow Rate
+14.5% vs TC avg
1,085
Total Applications
+7.3%
Interview Lift
873
Avg Prosecution Days
Based on 1055 resolved cases, 2023–2026

Rejection Statute Breakdown

0.4%
§101 Eligibility
27.1%
§102 Novelty
44.5%
§103 Obviousness
13.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18808281 COMPOSITION FOR MANUFACTURING SEMICONDUCTOR, METHOD FOR TREATING OBJECT TO BE TREATED, AND METHOD FOR MANUFACTURING SEMICONDUCTOR ELEMENT Final Rejection FUJIFILM Corporation
19056300 METHOD OF FORMING PATTERN AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18947090 ETCHING COMPOSITIONS, METHODS OF TREATING SUBSTRATES USING THE SAME, AND METHODS OF MANUFACTURING INTEGRATED CIRCUIT DEVICES USING THE SAME Non-Final OA Samsung Electronics Co., Ltd.
18651935 METHOD, SYSTEM AND APPARATUS FOR SURFACE MODIFICATION Final Rejection ASM IP Holding B.V.
18839177 SELECTIVE PRECISION ETCHING OF SEMICONDUCTOR MATERIALS Non-Final OA Lam Research Corporation
18771442 EFFICIENT CLEANING AND ETCHING OF HIGH ASPECT RATIO STRUCTURES Non-Final OA LAM RESEARCH CORPORATION
18826539 ETCHING METHODS AND PATTERNED SUBSTRATES MADE USING SAID METHODS Non-Final OA Ohio State Innovation Foundation
18951442 PLASMA PROCESSING METHOD AND PLASMA PROCESSING SYSTEM Non-Final OA Tokyo Electron Limited
18816114 SUBSTRATE-PROCESSING METHOD AND SUBSTRATE-PROCESSING DEVICE Non-Final OA Tokyo Electron Limited
18626693 SUBSTRATE-PROCESSING METHOD AND SUBSTRATE-PROCESSING APPARATUS Non-Final OA Tokyo Electron Limited
19099595 PLASMA PROCESSING METHOD Non-Final OA Hitachi High-Tech Corporation
18866369 METHOD FOR PRODUCING AQUEOUS SOLUTION OF PURIFIED AMINOSILANOL COMPOUND AND AMINOSILOXANE COMPOUND, AND COMPOSITION FOR ETCHING Non-Final OA SHIN-ETSU CHEMICAL CO., LTD.
18911657 METHOD FOR RECYCLING RARE EARTH SINTERED MAGNET Non-Final OA SHIN-ETSU CHEMICAL CO., LTD.
19064895 SEMICONDUCTOR STRUCTURE WITH REDUCED GATE CONTACT RESISTANCE AND METHOD FOR MANUFACTURING THE SAME Non-Final OA TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
18626386 SEMICONDUCTOR DEVICE FABRICATION METHODS AND DEVICES FOR FORMING THE SAME Final Rejection TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
18615579 SEMICONDUCTOR PROCESSING TOOL AND METHODS OF OPERATION Final Rejection Taiwan Semiconductor Manufacturing Company, Ltd.
18867945 ETCHING METHOD Non-Final OA Resonac Corporation
18857335 ABRASIVE GRAIN, SELECTION METHOD THEREFOR, POLISHING AGENT, MULTI-LIQUID POLISHING AGENT, POLISHING METHOD, COMPONENT MANUFACTURING METHOD, AND SEMICONDUCTOR COMPONENT MANUFACTURING METHOD Non-Final OA Resonac Corporation
18879868 SUBSTRATE PROCESSING METHOD Non-Final OA SCREEN Holdings Co., Ltd.
18574352 METHOD FOR MANUFACTURING AN EMITTER FOR ELECTROSPRAY GENERATORS Final Rejection INSTITUCIÓ CATALANA DE RECERCA I ESTUDIS AVANÇATS

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Frequently Asked Questions

What is examiner Duy Vu Nguyen Deo's allowance rate?

82.5% of resolved applications examined by Duy Vu Nguyen Deo were allowed (1,055 resolved cases), compared with 62.4% across Art Unit 1713 over the last five years.

Does an interview help with examiner Duy Vu Nguyen Deo?

This examiner's interview lift is +7.3 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Duy Vu Nguyen Deo take to allow a patent?

Applications allowed by Duy Vu Nguyen Deo took 873 days on average from filing to allowance.

Which art unit does examiner Duy Vu Nguyen Deo work in?

Duy Vu Nguyen Deo examines applications in Art Unit 1713 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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