Prosecution Insights
Last updated: October 01, 2026

Examiner: KUSUMAKAR, KAREN M

Tech Center 2800 • Art Units: 2829 2897

This examiner grants 87% of resolved cases

Analysis

Karen M. Kusumakar is an examiner in Tech Center 2800, specifically assigned to Art Unit 2829. She has a high volume of 979 resolved cases, which makes her performance metrics very reliable. The allowance rate is 87.2 percent. This is an exceptionally high rate, suggesting a very favorable environment for applicants. Practitioners can expect a high likelihood of success when their cases are assigned to this examiner, as 87.2 percent of resolved cases result in a grant.

The interview lift is 9.8 percent, which shows a modest but positive benefit from direct communication. The median time to allowance is 723 days. This is a very efficient timeline, indicating that cases move through the system much faster than the office average. The combination of an 87.2 percent allowance rate and 723 days of median pendency makes this one of the most efficient prosecution paths available. Practitioners should focus on maintaining clear and high-quality filings to take advantage of this fast and favorable environment. The 9.8 percent lift suggests that while interviews are helpful, the examiner is already inclined toward granting patents when the requirements are met.

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

Performance Statistics

87.2%
Allow Rate
+19.2% vs TC avg
984
Total Applications
+9.8%
Interview Lift
723
Avg Prosecution Days
Based on 979 resolved cases, 2023–2026

Rejection Statute Breakdown

1.1%
§101 Eligibility
37.9%
§102 Novelty
44.7%
§103 Obviousness
8.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18652029 DISPLAY DEVICE Non-Final OA LG ELECTRONICS INC.
18801938 SEMICONDUCTOR MEMORY DEVICE Non-Final OA Samsung Electronics Co., Ltd.
18636366 DISPLAY DEVICE AND METHOD OF FABRICATING THE SAME Non-Final OA Samsung Display Co., LTD.
18651249 PATTERNED DEEP TRENCH ISOLATION FOR PASSIVE DEVICES Non-Final OA NXP B.V.
18603549 Channel Manufacturing Method Non-Final OA SEIKO EPSON CORPORATION
18493562 METHOD FOR MANUFACTURING AN ELECTRONIC POWER DEVICE, AND DEVICE OBTAINED BY THIS METHOD Non-Final OA Commissariat à l'Énergie Atomique et aux Énergies Alternatives
18388563 QUANTUM DEVICE Non-Final OA NEC Corporation
18844451 PHOTOELECTRIC CONVERSION ELEMENT AND PHOTODETECTOR Non-Final OA SONY SEMICONDUCTOR SOLUTIONS CORPORATION
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)
18441908 SEMICONDUCTOR DEVICE HAVING CONTACT PLUG CONNECTED TO DIFFUSION REGION Final Rejection MICRON TECHNOLOGY, INC.
18461328 INTERCONNECTION STRUCTURE Non-Final OA TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
18331897 SEMICONDUCTOR STRUCTURE AND METHOD OF FORMING THE SAME Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18656653 SEMICONDUCTOR DEVICE Non-Final OA ROHM CO., LTD.
18651815 SEMICONDUCTOR MODULE Non-Final OA ROHM 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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