Prosecution Insights
Last updated: October 27, 2026

Karen M Kusumakar, USPTO Patent Examiner

Listed by the USPTO as KUSUMAKAR, KAREN M

Tech Center 2800 • Art Units: 2829 2897

This examiner grants 87% of resolved cases

Analysis

KUSUMAKAR, KAREN M works in tech center 2800 and art unit 2829. The profile covers 987 resolved cases, with an allowance rate of 87.3% and a median of 724 days to allowance. The interview lift is 9.8%, indicating a positive association between interviews and allowance outcomes in the reported record.

The listed companies are Taiwan Semiconductor Manufacturing Company, Ltd., Rohm Co., Ltd., and Samsung Electronics Co., Ltd. The listed firms are CANTOR COLBURN LLP, CHIP LAW GROUP, and Hanley, Flight and Zimmerman, LLC. The reported timing measure can help practitioners set expectations when evaluating prosecution schedules.

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

Performance Statistics

87.3%
Allow Rate
+19.3% vs TC avg
1,001
Total Applications
+9.8%
Interview Lift
724
Avg Prosecution Days
Based on 987 resolved cases, 2023–2026

Rejection Statute Breakdown

1.1%
§101 Eligibility
37.6%
§102 Novelty
44.9%
§103 Obviousness
8.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18843219 DESIGN TECHNIQUES FOR HIGH-FREQUENCY AND HIGH-SPEED SIGNALS IN A PACKAGE WITH THIN BUILD-UP LAYERS Non-Final OA Telefonaktiebolaget LM Ericsson (publ)
18801938 SEMICONDUCTOR MEMORY DEVICE Non-Final OA Samsung Electronics Co., Ltd.
18636366 DISPLAY DEVICE AND METHOD OF FABRICATING THE SAME Final Rejection Samsung Display Co., LTD.
18603549 Channel Manufacturing Method Non-Final OA SEIKO EPSON CORPORATION
18844451 PHOTOELECTRIC CONVERSION ELEMENT AND PHOTODETECTOR Non-Final OA SONY SEMICONDUCTOR SOLUTIONS CORPORATION
18388563 QUANTUM DEVICE Non-Final OA NEC Corporation
18450928 BACKSIDE INTEGRATED TORSION LOADING MECHANISM Non-Final OA Intel Corporation
18656653 SEMICONDUCTOR DEVICE Non-Final OA ROHM CO., LTD.
18461328 INTERCONNECTION STRUCTURE Non-Final OA TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
18740705 ELECTRO-MIGRATION REDUCTION Non-Final OA Taiwan Semiconductor Manufacturing Co., Ltd.
18736859 SEMICONDUCTOR DEVICE STRUCTURE WITH STACKED CONDUCTIVE PLUGS AND METHOD FOR PREPARING THE SAME Non-Final OA NANYA TECHNOLOGY CORPORATION

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Frequently Asked Questions

What is examiner Karen M Kusumakar's allowance rate?

87.3% of resolved applications examined by Karen M Kusumakar were allowed (987 resolved cases), compared with 53.7% across Art Unit 2829 over the last five years.

Does an interview help with examiner Karen M Kusumakar?

This examiner's interview lift is +9.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Karen M Kusumakar take to allow a patent?

Applications allowed by Karen M Kusumakar took 724 days on average from filing to allowance.

Which art unit does examiner Karen M Kusumakar work in?

Karen M Kusumakar examines applications in Art Unit 2829 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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