Prosecution Insights
Last updated: October 02, 2026

Examiner: MAZUMDER, DIDARUL A

Tech Center 4100 • Art Units: 2800 2812 2818 2819 4100

This examiner grants 86% of resolved cases

Analysis

Examiner Didarul A. Mazumder is positioned in Tech Center 4100 and Art Unit 2800. He has a high volume of 748 resolved cases, which provides a reliable basis for his performance metrics. The allowance rate is 86.5%, indicating a very high likelihood of securing a patent grant. The median days to allowance for these cases is 770, suggesting a relatively fast prosecution cycle for successful applications.

The interview lift for this examiner is 7.8%. This positive lift indicates that conducting an interview further improves the already high 86.5% chance of allowance. Practitioners should consider the 770-day median pendency as a standard expectation for timing. Given the high volume of 748 cases, the examiner's tendency toward allowance is well-established. Direct communication via interviews appears to be a helpful, though perhaps not always necessary, tool for reaching a favorable conclusion in Art Unit 2800.

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

Performance Statistics

86.5%
Allow Rate
+26.5% vs TC avg
768
Total Applications
+7.8%
Interview Lift
770
Avg Prosecution Days
Based on 748 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
25.1%
§102 Novelty
58.7%
§103 Obviousness
11.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18752055 SEMICONDUCTOR PACKAGE Non-Final OA Samsung Electronics Co., Ltd.
18747852 SEMICONDUCTOR PACKAGE AND METHOD FOR MANUFACTURING THE SAME Non-Final OA Samsung Electronics Co., Ltd.
18883482 DISPLAY APPARATUS AND METHOD OF MANUFACTURING THE SAME Non-Final OA Samsung Display Co., Ltd.
18777454 SUB-PIXEL, DISPLAY PANEL INCLUDING THE SAME, AND METHOD OF FABRICATING THE DISPLAY PANEL Non-Final OA Samsung Display Co., LTD.
18662824 DISPLAY DEVICE AND METHOD FOR MANUFACTURING THE SAME Non-Final OA Samsung Display Co., LTD.
18630976 DISPLAY DEVICE Non-Final OA Samsung Display Co., LTD.
18430745 DISPLAY DEVICE Final Rejection SAMSUNG DISPLAY CO., LTD.
18837968 SEMICONDUCTOR DEVICE, ELECTRONIC DEVICE, AND MANUFACTURING METHOD FOR SEMICONDUCTOR DEVICE Non-Final OA SONY SEMICONDUCTOR SOLUTIONS CORPORATION
18721729 PHOTODETECTION DEVICE AND ELECTRONIC DEVICE Non-Final OA SONY SEMICONDUCTOR SOLUTIONS CORPORATION
18769417 SEMICONDUCTOR STRUCTURE COMPRISING VARIOUS VIA STRUCTURES Non-Final OA TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
18767970 METHOD OF FABRICATING PACKAGE STRUCTURE Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18619755 METALLIZATION AND PLANARIZATION Non-Final OA Tokyo Electron Limited
18816164 SEMICONDUCTOR DEVICE WITH ISOLATION STRUCTURE AND METHOD FOR FABRICATING THE SAME Non-Final OA NANYA TECHNOLOGY CORPORATION
18739600 SEMICONDUCTOR DEVICE INCLUDING DOUBLE SIDE WORD LINE AND METHOD OF MANUFACTURING THE SAME Final Rejection NANYA TECHNOLOGY CORPORATION
18653129 SEMICONDUCTOR DEVICE INCLUDING DOUBLE SIDE WORD LINE AND METHOD OF MANUFACTURING THE SAME Final Rejection NANYA TECHNOLOGY CORPORATION
18438499 SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF Non-Final OA NANYA TECHNOLOGY CORPORATION
18540989 MEMORY DEVICE AND MANUFACTURING METHOD THEREOF Final Rejection NANYA TECHNOLOGY CORPORATION
18541732 Carrier Confinement Structure of AlInGaP MicroLEDs Non-Final OA Lumileds LLC
18405721 Power Semiconductor Devices Including Shape-Memory Metallization Final Rejection Wolfspeed, Inc.
18695915 Integrated Circuit Design for Digital Computing and Information Processing of Mechanical Signals Non-Final OA THE PENN STATE RESEARCH FOUNDATION
18826146 SEMICONDUCTOR DEVICE Non-Final OA FUJI ELECTRIC CO., LTD.
18713455 NITRIDE SEMICONDUCTOR SUBSTRATE AND MANUFACTURING METHOD THEREFOR Non-Final OA SHIN-ETSU HANDOTAI CO., LTD

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