Prosecution Insights
Last updated: October 26, 2026

Sunil Singh, USPTO Patent Examiner

Listed by the USPTO as SINGH, SUNIL

Tech Center 3600 • Art Units: 3672 3678

This examiner grants 67% of resolved cases

Analysis

SINGH, SUNIL is assigned to Tech Center 3600 and art unit 3672. The record includes 1118 resolved cases and an allowance rate of 67.4%. The interview lift is 24.8%, indicating a smaller interview-related effect than the underlying allowance rate. The median time to allowance is 927 days, which gives practitioners a timing measure for prosecution planning and continuation decisions.

The listed companies are The Sollami Company, Built Robotics Inc., and Petróleo Brasileiro S.A. - Petrobras. The listed firms are FENWICK & WEST LLP, Fredrikson & Byron, P. A., and HOWARD & HOWARD ATTORNEYS PLLC. The substantial resolved-case record supports using the profile as a meaningful historical reference when preparing applications in this art unit.

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

Performance Statistics

67.4%
Allow Rate
+15.4% vs TC avg
1,146
Total Applications
+24.8%
Interview Lift
927
Avg Prosecution Days
Based on 1118 resolved cases, 2023–2026

Rejection Statute Breakdown

2.0%
§101 Eligibility
20.4%
§102 Novelty
43.4%
§103 Obviousness
29.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18998926 Flexible Hollow Anchor Rod Integrating Digital Monitoring and Construction Method Thereof Non-Final OA JIANGSU FENGZHI MINING TECHNOLOGY CO., LTD

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Frequently Asked Questions

What is examiner Sunil Singh's allowance rate?

67.4% of resolved applications examined by Sunil Singh were allowed (1,118 resolved cases), compared with 65.2% across Art Unit 3672 over the last five years.

Does an interview help with examiner Sunil Singh?

This examiner's interview lift is +24.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

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

Applications allowed by Sunil Singh took 927 days on average from filing to allowance.

Which art unit does examiner Sunil Singh work in?

Sunil Singh examines applications in Art Unit 3672 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

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