Prosecution Insights
Last updated: October 26, 2026

Pinaki Das, USPTO Patent Examiner

Listed by the USPTO as DAS, PINAKI

Tech Center 2800 • Art Units: 2898

This examiner grants 88% of resolved cases

Performance Statistics

87.5%
Allow Rate
+19.5% vs TC avg
100
Total Applications
-1.9%
Interview Lift
1311
Avg Prosecution Days
Based on 56 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
28.1%
§102 Novelty
46.8%
§103 Obviousness
23.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18586789 INFRARED IMAGE SENSOR AND MANUFACTURING METHOD THEREOF Final Rejection Samsung Electronics Co., Ltd.
18417150 CAPACITOR STRUCTURE AND SEMICONDUCTOR DEVICE INCLUDING THE CAPACITOR STRUCTURE Final Rejection SAMSUNG ELECTRONICS CO., LTD.
17846245 SEMICONDUCTOR PACKAGE Final Rejection SAMSUNG ELECTRONICS CO., LTD.
17792178 METHOD FOR PRODUCING AN OHMIC CONTACT ON A CRYSTALLOGRAPHIC C-SIDE OF A SILICON CARBIDE SUBSTRATE, AND OHMIC CONTACT Non-Final OA Robert Bosch GmbH
18676609 DISPLAY DEVICE AND METHOD OF PROVIDING THE SAME Non-Final OA Samsung Display Co., Ltd.
18656470 DISPLAY DEVICE AND MANUFACTURING METHOD FOR SAME Non-Final OA Samsung Display Co., Ltd.
18668106 METHOD OF MEASURING THICKNESS OF SEMICONDUCTOR WAFER AND INSPECTING BONDING VOIDS Non-Final OA Micron Technology, Inc.
17929933 ELECTRONIC DEVICES INCLUDING A METAL SILICIDE MATERIAL OVER A SOURCE CONTACT, AND RELATED MEMORY DEVICES, SYSTEMS, AND METHODS OF FORMING Non-Final OA Micron Technology, Inc.
17874206 HYBRID SEMICONDUCTOR DEVICE ASSEMBLY INTERCONNECTION PILLARS AND ASSOCIATED METHODS Non-Final OA Micron Technology, Inc.
17719241 SEMICONDUCTOR DEVICE ASSEMBLIES INCLUDING MONOLITHIC SILICON STRUCTURES FOR THERMAL DISSIPATION AND METHODS OF MAKING THE SAME Final Rejection Micron Technology, Inc.
17769582 DISPLAY DEVICE AND METHOD FOR MANUFACTURING DISPLAY DEVICE Final Rejection SHARP KABUSHIKI KAISHA
18082285 INTEGRATED CIRCUIT HAVING EXPOSED LEADS Final Rejection TEXAS INSTRUMENTS INCORPORATED
17991062 SEMICONDUCTOR MEMORY DEVICE AND MANUFACTURING METHOD OF SEMICONDUCTOR MEMORY DEVICE Non-Final OA SK hynix Inc.
18124154 METHOD FOR REPLACING SOLDER BALLS OF AN ELECTRONIC PACKAGE Final Rejection SKYWORKS SOLUTIONS, INC.
18659212 SEMICONDUCTOR DEVICE AND METHODS OF FORMATION Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18166109 METHODS FOR FORMING SEMICONDUCTOR PACKAGE Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
17870770 FIELD EFFECT TRANSISTOR WITH ISOLATION STRUCTURE AND METHOD Non-Final OA Taiwan Semiconductor Manufacturing Company Ltd.
18787277 SEMICONDUCTOR DEVICE WITH TUNABLE EPITAXY STRUCTURES AND METHOD OF FORMING THE SAME Non-Final OA Taiwan Semiconductor Manufacturing Co., Ltd
18812168 METHOD OF MANUFACTURING WAFER Non-Final OA DISCO CORPORATION

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Frequently Asked Questions

What is examiner Pinaki Das's allowance rate?

87.5% of resolved applications examined by Pinaki Das were allowed (56 resolved cases), compared with 80.2% across Art Unit 2898 over the last five years.

Does an interview help with examiner Pinaki Das?

This examiner's interview lift is -1.9 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Pinaki Das take to allow a patent?

Applications allowed by Pinaki Das took 1,311 days on average from filing to allowance.

Which art unit does examiner Pinaki Das work in?

Pinaki Das examines applications in Art Unit 2898 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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