Prosecution Insights
Last updated: October 26, 2026

Mandeep S Buttar, USPTO Patent Examiner

Listed by the USPTO as BUTTAR, MANDEEP S

Tech Center 2800 • Art Units: 2835 2838 2841 2875

This examiner grants 80% of resolved cases

Analysis

BUTTAR, MANDEEP S handles cases in USPTO Technology Center 2800 and art unit 2835. The record covers 556 resolved cases and reports a 79.7% allowance rate. The median time to allowance is 767 days, giving applicants a defined but substantial period for examination planning and portfolio coordination.

The reported interview lift is 16.0%, indicating that interviews may contribute to outcome management when tied to specific claim issues. The listed companies are Canaan Creative Co. Ltd., LG Display Co., Ltd., and Mahle International GmbH. Blank Rome LLP, Fishman Stewart PLLC, and HDLS IPR SERVICES are the identified firms. Applicants should connect claim language closely to the disclosed device and materials relationships, while maintaining an amendment plan that protects commercially important scope.

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

Performance Statistics

79.7%
Allow Rate
+11.7% vs TC avg
575
Total Applications
+16.0%
Interview Lift
767
Avg Prosecution Days
Based on 556 resolved cases, 2023–2026

Rejection Statute Breakdown

0.6%
§101 Eligibility
26.9%
§102 Novelty
57.7%
§103 Obviousness
10.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18909523 DISPLAY APPARATUS Non-Final OA LG Display Co., Ltd.
18058200 ELECTRICAL CIRCUIT DEVICE AND MOTOR VEHICLE Final Rejection AUDI AG
18735501 SERVER WITH HYBRID THERMAL MANAGEMENT SYSTEM Non-Final OA Carrier Corporation
18806277 EDGE DATA CENTER Non-Final OA Hebei Qinhuai Data Co., Limited.

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Frequently Asked Questions

What is examiner Mandeep S Buttar's allowance rate?

79.7% of resolved applications examined by Mandeep S Buttar were allowed (556 resolved cases), compared with 56.2% across Art Unit 2835 over the last five years.

Does an interview help with examiner Mandeep S Buttar?

This examiner's interview lift is +16.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Mandeep S Buttar take to allow a patent?

Applications allowed by Mandeep S Buttar took 767 days on average from filing to allowance.

Which art unit does examiner Mandeep S Buttar work in?

Mandeep S Buttar examines applications in Art Unit 2835 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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