Prosecution Insights
Last updated: October 01, 2026

Examiner: MAI, ANH D

Tech Center 2800 • Art Units: 2800 2814 2829 2889 2893

This examiner grants 38% of resolved cases

Analysis

Anh D. Mai, working in Tech Center 2800 and Art Unit 2800, has handled 708 resolved cases. The allowance rate is 37.7%. Applicants can prepare for a prosecution cycle where the median days to allowance is 1339.

The data indicates an interview lift of 9.8%, which offers a strategic path for addressing rejections. Given the 708 resolved cases, this lift is a factor to consider when planning responses. The 37.7% allowance rate and 1339-day timeline suggest that persistence and direct communication are components of a strategy with this examiner. In this specific art unit, the data provided by these resolved cases provides a basis for understanding the examiner's tendencies. The 9.8% interview lift shows that interviews provide a measurable advantage relative to the baseline. Practitioners should factor these 708 resolved cases into their overall strategy for Tech Center 2800.

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

Performance Statistics

37.7%
Allow Rate
-30.3% vs TC avg
765
Total Applications
+9.6%
Interview Lift
1339
Avg Prosecution Days
Based on 709 resolved cases, 2023–2026

Rejection Statute Breakdown

1.9%
§101 Eligibility
21.8%
§102 Novelty
45.1%
§103 Obviousness
30.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18329784 SEMICONDUCTOR DEVICE HAVING CONTACT PLUG WITH AN UPPER CONDUCTIVE PATTERN FORMED ON AN UPPER SURFACE OF A LOWER CONDUCTIVE PATTERN Final Rejection SAMSUNG ELECTRONICS CO., LTD.
18237044 DISPLAY APPARATUS Non-Final OA SAMSUNG DISPLAY CO., LTD.
18139884 FLEXIBLE WIRING BOARD HAVING SIGNAL LINE FORMED BETWEEN TWO INORGANIC LAYERS AND COVERED BY ORGANIC LAYERS OVER THE INORGANIC LAYERS Non-Final OA Samsung Display Co., Ltd.
17715700 DISPLAY APPARATUS INCLUDING AN OXIDE-SEMICONDUCTOR THIN FILM TRANSISTOR FORMED ON A SUBSTRATE HAVING A GATE ELECTRODE OF TWO DIFFERENT MATERIALS STACKED Non-Final OA Samsung Display Co., Ltd.
18238714 DISPLAY DEVICE Final Rejection LG Display Co., Ltd.
18593833 A SEMICONDUCTOR DEVICE HAVING SEPARATION REGION CONTACTING GUARD RING REGION AND DEEP SEMICONDUCTOR REGION PARTITIONING A DEVICE PART INTO A PLURALITY OF DEVICE REGIONS AND THE SEPARATION REGION HAVING A WIDTH LESS THAN A WIDTH OF GUARD RING REGION Final Rejection Toshiba Electronic Devices & Storage Corporation
18366441 LATERALLY DIFFUSED METAL OXIDE SEMICONDUCTOR (LDMOS) TRANSISTOR INTEGRATION IN INTEGRATED CIRCUIT (IC) PLATFORM Final Rejection QUALCOMM Incorporated
18577717 SOLID-STATE IMAGING ELEMENT, MANUFACTURING METHOD, AND ELECTRONIC EQUIPMENT Non-Final OA SONY SEMICONDUCTOR SOLUTIONS CORPORATION
17820380 SUPERCONDUCTING MONOLITHIC MICROWAVE INTEGRATED CIRCUIT PROCESSING Non-Final OA International Business Machines Corporation
17559296 A SEMICONDUCTOR DEVICE HAVING A DIFFUSION BREAK STRUCTURE WITH A FIRST WIDTH LESS THAN A WIDTH OF GATE TERMINAL Non-Final OA International Business Machines Corporation
18881996 POWER SEMICONDUCTOR DEVICE HAVING GATE ELECTRODE COVERS AT MOST A PORTION OF THE DRIFT REGION Non-Final OA Hitachi Energy Ltd
18361880 SEMICONDUCTOR DEVICE WITH A HIGH K FIELD RELIEF DIELECTRIC STRUCTURE Non-Final OA Texas Instruments Incorporated
18344769 SEMICONDUCTOR DEVICE WITH NITROGEN DOPED FIELD RELIEF DIELECTRIC LAYER Non-Final OA Texas Instruments Incorporated
18446919 FIELD EFFECT TRANSISTOR HAVING A PLURALITY OF P-TYPE DEEP LAYERS AND PLURALITY OF N-TYPE DEEP LAYERS LATERALLY AND ALTERNATIVELY FORMED UNDER P-TYPE BODY LAYER EXTENDING IN A SECOND DIRECTION PERPENDICULAR TO THE DIRECTION OF THE TRENCH Non-Final OA DENSO CORPORATION
18401948 SEMICONDUCTOR DEVICE STRUCTURE AND METHOD FOR FORMING THE SAME Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
17823508 EMBEDDED SOI STRUCTURE FOR LOW LEAKAGE MOS CAPACITOR Final Rejection Taiwan Semiconductor Manufacturing Company, Ltd.
17862422 SEMICONDUCTOR PACKAGE AND MANUFACTURING METHOD THEREOF Final Rejection Taiwan Semiconductor Manufacturing Company, Ltd.
17303524 METHOD FOR FORMING DEEP TRENCH ISOLATION IN AN IMAGING SENSOR BY SEPARATELY FORMING FIRST SET OF DEEP TRENCHES IN FIRST DIRECTION THEN FORMING SECOND SET OF DEEP TRENCHES IN SECOND DIRECTION Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18781476 SEMICONDUCTOR DEVICE WITH INTEGRATED METAL-INSULATOR-METAL CAPACITORS Final Rejection Taiwan Semiconductor Manufacturing Co., Ltd.
16585859 SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF Final Rejection TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
18226988 PRINTED CIRCUIT BOARD Non-Final OA SAMSUNG ELECTRO-MECHANICS CO., LTD.
18802243 A TRENCH-TYPE POWER SEMICONDUCTOR DEVICE HAVING P-TYPE REGIONS AND N-TYPE REGIONS ALTERNATIVELY FORMED UNDER AND CONTACTING THE BOTTOM OF TRENCH GATE Non-Final OA FUJI ELECTRIC CO., LTD.
18610017 SEMICONDUCTOR DEVICE HAVING DEVICE ELEMENT STRUCTURES WITH PN JUNCTION FORMED IN ACTIVE REGION AND VOLTAGE WITHSTANDING RINGS FORMED IN PERIPHERY REGION SURROUNDING THE ACTIVE REGION AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE Non-Final OA FUJI ELECTRIC CO., LTD.
18176130 SILICON CARBIDE SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING SILICON CARBIDE SEMICONDUCTOR DEVICE Final Rejection FUJI ELECTRIC CO., LTD.
18174830 SILICON CARBIDE SEMICONDUCTOR DEVICE Final Rejection FUJI ELECTRIC CO., LTD.
17884528 MRAM STRUCTURE AND METHOD OF FABRICATING THE SAME Final Rejection UNITED MICROELECTRONICS CORP.

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