Prosecution Insights
Last updated: October 26, 2026

Sunil K Singh, USPTO Patent Examiner

Listed by the USPTO as SINGH, SUNIL K

Tech Center 3700 • Art Units: 3722 3732

This examiner grants 39% of resolved cases

Analysis

SINGH, SUNIL K works in Tech Center 3700 and art unit 3722. The profile records 423 resolved cases and an allowance rate of 39.0%. Interview activity is associated with a 26.3% lift, which is below the allowance rate but still provides a measurable prosecution signal. The median time to allowance is 1411 days, making efficient development of the record important for applicants facing extended pendency.

The listed companies are Kia Corporation, Crown Warranty LLC, and Thommen Medical AG. The listed firms are Calfee, Halter & Griswold LLP, IP Business Solutions, LLC, and Knobbe, Martens, Olson & Bear, LLP. Counsel can use these portfolio references with the allowance and timing data to tailor interview preparation, claim amendments, and expectations for examination in the art unit.

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

Performance Statistics

39.0%
Allow Rate
-31.0% vs TC avg
443
Total Applications
+26.3%
Interview Lift
1411
Avg Prosecution Days
Based on 423 resolved cases, 2023–2026

Rejection Statute Breakdown

1.2%
§101 Eligibility
26.0%
§102 Novelty
52.1%
§103 Obviousness
14.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18636870 MILLING CUTTER Non-Final OA Kia Corporation

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Frequently Asked Questions

What is examiner Sunil K Singh's allowance rate?

39.0% of resolved applications examined by Sunil K Singh were allowed (423 resolved cases), compared with 54.2% across Art Unit 3722 over the last five years.

Does an interview help with examiner Sunil K Singh?

This examiner's interview lift is +26.3 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Sunil K Singh take to allow a patent?

Applications allowed by Sunil K Singh took 1,411 days on average from filing to allowance.

Which art unit does examiner Sunil K Singh work in?

Sunil K Singh examines applications in Art Unit 3722 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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