Prosecution Insights
Last updated: October 26, 2026

Viswanathan Subramanian, USPTO Patent Examiner

Listed by the USPTO as SUBRAMANIAN, VISWANATHAN

Tech Center 3600 • Art Units: 2832 2834 3615

This examiner grants 82% of resolved cases

Analysis

SUBRAMANIAN, VISWANATHAN works in tech center 3600 and art unit 2832. The record includes 243 resolved cases, an allowance rate of 81.5%, and a median of 915 days to allowance. The allowance figure indicates favorable outcomes in the available record, while the median shows that prosecution still requires a meaningful period before allowance. The case volume provides useful context for evaluating this pattern.

The interview lift is 19.3%, supporting interviews as a potentially useful part of response planning. ZF Friedrichshafen AG, Kabushiki Kaisha Toshiba, and Mahle International GmbH are the listed companies. Crowell, BAKER BOTTS L.L.P., and Blueshift IP LLC are the listed firms with recorded experience before the examiner.

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

Performance Statistics

81.5%
Allow Rate
+29.5% vs TC avg
281
Total Applications
+19.3%
Interview Lift
915
Avg Prosecution Days
Based on 243 resolved cases, 2023–2026

Rejection Statute Breakdown

0.9%
§101 Eligibility
31.1%
§102 Novelty
54.9%
§103 Obviousness
12.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18674197 BRUSHLESS MOTOR Final Rejection DENSO CORPORATION
18295438 PROPULSION SYSTEM HAVING INTEGRATED ELECTRIC MOTOR AND DISCONNECT CLUTCH AND METHOD OF OPERATING SAME Non-Final OA Caterpillar Inc.
18632367 ACTUATOR Non-Final OA SUMITOMO HEAVY INDUSTRIES, LTD.
18769358 ELECTRIC MOTOR Final Rejection BorgWarner Inc.
18689159 SUPERCONDUCTING ROTATING MACHINE AND SHIP, AUTOMOBILE, AIRCRAFT, AND PUMP USING SAME Non-Final OA KYOTO UNIVERSITY

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Frequently Asked Questions

What is examiner Viswanathan Subramanian's allowance rate?

81.5% of resolved applications examined by Viswanathan Subramanian were allowed (243 resolved cases), compared with 65.0% across Art Unit 2832 over the last five years.

Does an interview help with examiner Viswanathan Subramanian?

This examiner's interview lift is +19.3 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Viswanathan Subramanian take to allow a patent?

Applications allowed by Viswanathan Subramanian took 915 days on average from filing to allowance.

Which art unit does examiner Viswanathan Subramanian work in?

Viswanathan Subramanian examines applications in Art Unit 2832 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

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