Prosecution Insights
Last updated: October 27, 2026

Thomas T Pham, USPTO Patent Examiner

Listed by the USPTO as PHAM, THOMAS T

Tech Center 2800 • Art Units: 1713 1714 1716 1743 2852

This examiner grants 52% of resolved cases

Analysis

PHAM, THOMAS T is a USPTO patent examiner in tech center 2800 and art unit 1713. The profile covers 583 resolved cases, an allowance rate of 51.5%, and a median of 1181 days to allowance. The interview lift is 15.8%, indicating a positive association between interviews and allowance outcomes in the reported cases.

The listed companies are Tokyo Electron Limited, Applied Materials Inc., and Taiwan Semiconductor Manufacturing Company, Ltd. The listed firms are MILES & STOCKBRIDGE PC, OLIFF PLC, and SUGHRUE MION, PLLC. The allowance rate suggests that practitioners should give careful attention to claim scope and response positioning. The median timing is relevant to portfolio forecasting, while the interview measure supports evaluating direct examiner engagement as a complement to written prosecution.

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

Performance Statistics

51.5%
Allow Rate
-16.5% vs TC avg
648
Total Applications
+15.8%
Interview Lift
1181
Avg Prosecution Days
Based on 583 resolved cases, 2023–2026

Rejection Statute Breakdown

0.1%
§101 Eligibility
15.5%
§102 Novelty
51.1%
§103 Obviousness
31.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17889136 METHOD FOR TREATING OBJECT TO BE TREATED AND TREATMENT LIQUID Final Rejection FUJIFILM Corporation
18232123 PLASMA CONTROL DEVICE AND PLASMA CONTROL METHOD Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
17966021 MAGNET-DRIVEN CHEMICAL-MECHANICAL POLISHING Final Rejection Intel Corporation
18386520 MEMORY CELLS WITH SIDEWALL AND BULK REGIONS IN PLANAR STRUCTURES Final Rejection Micron Technology, Inc.
18433320 DIRECT CURRENT SUPERPOSITION (DCS) FOR PROTECTION OF ORGANIC MANDREL DURING SPACER DEPOSITION Final Rejection Tokyo Electron Limited
18402328 FAULT DETECTION AND CLASSIFICATION (FDC) FOR ENDPOINT DETECTION (EPD) BY REFLECTOMETRY Final Rejection Tokyo Electron Limited
18573700 SUBSTRATE PROCESSING METHOD, SUBSTRATE PROCESSING SYSTEM AND COMPUTER-READABLE RECORDING MEDIUM Non-Final OA Tokyo Electron Limited
18386618 ETCHING METHOD AND PLASMA PROCESSING APPARATUS Non-Final OA Tokyo Electron Limited
18538048 ISOTROPIC ECHING METHOD FOR TWO-DIMENSIONAL SEMICONDUCTOR MATERIALS Final Rejection Research & Business Foundation SUNGKYUNKWAN UNIVERSITY
18374224 ETCHING PROCESSING METHOD AND ETCHING PROCESSING APPARATUS Final Rejection Hitachi High-Tech Corporation
17908177 PLASMA PROCESSING METHOD Final Rejection Hitachi High-Tech Corporation
18702402 ETCHING METHODS USING SILICON-CONTAINING HYDROFLUOROCARBONS Non-Final OA L'Air Liquide, Société Anonyme pour I'Etude et I'Exploitation des Procédés Georges Claude
19051385 METAL OXIDE DIRECTIONAL REMOVAL Final Rejection Applied Materials, Inc.
18521948 PLASMA PROCESSING WITH INDEPENDENT TEMPERATURE CONTROL Final Rejection Applied Materials, Inc.
17674127 HIGHLY SELECTIVE SILICON ETCHING Final Rejection Applied Materials, Inc.
18657842 APPARATUS AND METHODS FOR CHEMICAL MECHANICAL POLISHING Final Rejection TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
18400440 SEMICONDUCTOR DIE AND METHODS OF FORMATION Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18646459 PLANARIZATION PROCESS AND METHOD Non-Final OA Taiwan Semiconductor Manufacturing Co., Ltd.
18752505 METHODS OF TREATING A SEMICONDUCTOR SUBSTRATE AND APPARATUS Non-Final OA SPTS Technologies Limited
18430567 WET ETCH FORMULATIONS AND RELATED METHODS Final Rejection ENTEGRIS, INC.
18766908 POLISHING COMPOSITIONS AND METHODS OF USE THEREOF Non-Final OA Fujifilm Electronic Materials U.S.A., Inc.
18697692 METAL OXIDE WET ETCHING METHOD Final Rejection PSIQUANTUM CORP.
18740482 METHOD FOR PLANARIZING SURFACE OF SEMICONDUCTOR DEVICE Final Rejection UNITED MICROELECTRONICS CORP.
18187055 ATOMIC LAYER ETCHING OF METAL OXIDES USING NOVEL CO-REACTANTS AS HALOGENATING AGENTS FOR SEMICONDUCTOR FABRICATION Final Rejection North Carolina State University
17910895 POLISHING COMPOSITION AND POLISHING METHOD Non-Final OA FUJIMI INCORPORATED
16645741 METHOD FOR MANUFACTURING DISK-SHAPED GLASS SUBSTRATE, METHOD FOR MANUFACTURING THIN GLASS SUBSTRATE, AND METHOD FOR MANUFACTURING LIGHT-GUIDING PLATE Final Rejection HOYA CORPORATION

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Frequently Asked Questions

What is examiner Thomas T Pham's allowance rate?

51.5% of resolved applications examined by Thomas T Pham were allowed (583 resolved cases), compared with 62.4% across Art Unit 1713 over the last five years.

Does an interview help with examiner Thomas T Pham?

This examiner's interview lift is +15.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Thomas T Pham take to allow a patent?

Applications allowed by Thomas T Pham took 1,181 days on average from filing to allowance.

Which art unit does examiner Thomas T Pham work in?

Thomas T Pham examines applications in Art Unit 1713 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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