Prosecution Insights
Last updated: October 26, 2026

Didarul A Mazumder, USPTO Patent Examiner

Listed by the USPTO as MAZUMDER, DIDARUL A

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

This examiner grants 87% of resolved cases

Analysis

MAZUMDER, DIDARUL A works in Tech Center 4100 and Art Unit 2800. He has 751 resolved cases, an 86.6% allowance rate, and a 771-day median to allowance. The allowance rate indicates that most matters in the record reached allowance, while the median supports planning around a relatively short reported path to allowance.

The interview lift is 7.8%, showing a limited positive association between interviews and allowance outcomes. Recurring applicants include Samsung Display Co., Ltd., Samsung Electronics Co., Ltd., and Sony Group Corporation. The listed firms are Womble Bond Dickinson US LLP, DORITY & MANNING, P.A., and AP3 Law Firm (Diodes). Written responses may remain the primary strategic tool.

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

Performance Statistics

86.6%
Allow Rate
+26.6% vs TC avg
794
Total Applications
+7.8%
Interview Lift
771
Avg Prosecution Days
Based on 751 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
25.5%
§102 Novelty
58.3%
§103 Obviousness
11.7%
§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.
18657229 VERTICAL MEMORY DEVICE AND METHOD OF MANUFACTURING THE SAME Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18826146 SEMICONDUCTOR DEVICE Non-Final OA FUJI ELECTRIC CO., LTD.
18397931 Display Device Final Rejection LG Display 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.
18507298 DISPLAY DEVICE AND METHOD FOR MANUFACTURING THE SAME 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
18766761 FLEXIBLE DISPLAY DEVICE AND ELECTRONIC DEVICE Non-Final OA BOE Technology Group Co., Ltd.
18120910 INTERPOSER SOLUTION FOR HIGH CORE COUNT COMPUTE PLATFORMS Final Rejection Intel Corporation
18887124 LIGHT-EMITTING DEVICE, LIGHT-EMITTING APPARATUS, ELECTRONIC DEVICE, AND LIGHTING DEVICE Non-Final OA SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
18834575 METHOD FOR MANUFACTURING A SEMICONDUCTOR ARRANGEMENT AND SEMICONDUCTOR ARRANGEMENT Non-Final OA ams-OSRAM International GmbH
18713455 NITRIDE SEMICONDUCTOR SUBSTRATE AND MANUFACTURING METHOD THEREFOR Non-Final OA SHIN-ETSU HANDOTAI CO., LTD

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Frequently Asked Questions

What is examiner Didarul A Mazumder's allowance rate?

86.6% of resolved applications examined by Didarul A Mazumder were allowed (751 resolved cases), compared with 69.7% across Art Unit 2800 over the last five years.

Does an interview help with examiner Didarul A Mazumder?

This examiner's interview lift is +7.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Didarul A Mazumder take to allow a patent?

Applications allowed by Didarul A Mazumder took 771 days on average from filing to allowance.

Which art unit does examiner Didarul A Mazumder work in?

Didarul A Mazumder examines applications in Art Unit 2800 in Tech Center 4100.

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