Prosecution Insights
Last updated: October 27, 2026

Vishal A Patel, USPTO Patent Examiner

Listed by the USPTO as PATEL, VISHAL A

Tech Center 3600 • Art Units: 3631 3674 3675 3676

This examiner grants 59% of resolved cases

Analysis

Patel, Vishal A is assigned to Tech Center 3600 and Art Unit 3631, with 834 resolved cases. The allowance rate is 59.1%, the interview lift is 22.6%, and the median time to allowance is 1127 days. The interview measure is lower than the allowance rate but remains a meaningful positive signal within this examiner’s record.

The listed companies are Illinois Tool Works Inc., Eagle Industry Co., Ltd., and John Crane Inc. The leading firms are HAYES SOLOWAY P.C., MARSHALL & MELHORN, LLC, and NELSON MULLINS RILEY & SCARBOROUGH LLP. The substantial case volume gives practitioners a broad basis for using the profile in preparation, particularly when deciding whether an interview should accompany a substantive amendment.

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

Performance Statistics

59.1%
Allow Rate
+7.1% vs TC avg
894
Total Applications
+22.6%
Interview Lift
1127
Avg Prosecution Days
Based on 834 resolved cases, 2023–2026

Rejection Statute Breakdown

0.1%
§101 Eligibility
31.3%
§102 Novelty
38.6%
§103 Obviousness
26.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19180577 A SEAL, A SEAL ASSEMBLY AND A METHOD Non-Final OA ROLLS-ROYCE PLC
19021640 Nut Fastening Clip and Nut Fastening Clip Assembly Comprising Same Non-Final OA Illinois Tool Works Inc.
18965611 Air Bag Retainer with Assembly Prevention and Verification Non-Final OA Illinois Tool Works Inc.
18981425 PISTON RING ASSEMBLY Non-Final OA MAHLE International GmbH
18689360 SEAL STRUCTURE FOR IN-WHEEL ELECTRIC MOTOR DRIVE SYSTEM, AND IN-WHEEL ELECTRIC MOTOR DRIVE SYSTEM Non-Final OA Schaeffler Technologies AG & Co. KG
18437166 SCREW, CONNECTION STRUCTURE, BATTERY, AND ELECTRIC APPARATUS Final Rejection CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18161919 SEALING DEVICE AND ROTARY MACHINE Non-Final OA MITSUBISHI HEAVY INDUSTRIES, LTD.
18721195 PISTON RING AND PISTON RING SET Non-Final OA KABUSHIKI KAISHA RIKEN
18423526 COATED WEAR SLEEVE FOR DYNAMIC SHAFT Final Rejection Caterpillar Inc.
19118220 VALVE STEM SEAL SEALING DEVICE Non-Final OA NOK CORPORATION
17433746 SEALING DEVICE Final Rejection NOK CORPORATION
17943993 PRINTED ANNULAR METAL-TO-METAL SEAL Non-Final OA Baker Hughes Oilfield Operations LLC
19295993 Carbon Radial Seal Non-Final OA RTX Corporation

Facing This Examiner?

IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.

Build Your Strategy

Who Appears Before This Examiner

Top companies before this examiner

Law firms appearing most often

Frequently Asked Questions

What is examiner Vishal A Patel's allowance rate?

59.1% of resolved applications examined by Vishal A Patel were allowed (834 resolved cases), compared with 56.0% across Art Unit 3631 over the last five years.

Does an interview help with examiner Vishal A Patel?

This examiner's interview lift is +22.6 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Vishal A Patel take to allow a patent?

Applications allowed by Vishal A Patel took 1,127 days on average from filing to allowance.

Which art unit does examiner Vishal A Patel work in?

Vishal A Patel examines applications in Art Unit 3631 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month