Prosecution Insights
Last updated: October 26, 2026

Dapinder Singh, USPTO Patent Examiner

Listed by the USPTO as SINGH, DAPINDER

Tech Center 3700 • Art Units: 1738 3746 3748 3762

This examiner grants 82% of resolved cases

Analysis

SINGH, DAPINDER works in Tech Center 3700 and Art Unit 1738. The profile records 896 resolved cases, an 82.5% allowance rate, and an 18.4% interview lift. The allowance rate reflects a favorable recorded docket, while the interview figure indicates that direct engagement may provide useful additional support. Applicants should combine clear written distinctions with interviews directed to the examiner’s understanding of the claims and the most consequential prior art.

The median time to allowance is 798 days. Mitsubishi Heavy Industries Ltd., Daikin Industries Ltd., and Emerson Electric Co. are the listed leading companies. The leading firms are BIRCH STEWART KOLASCH & BIRCH, LLP, Boone IP Law, PLLC, and MCKEE, VOORHEES & SEASE, P.L.C. Counsel may pursue efficient resolution while preserving commercially important scope. The profile also supports active timing management and focused amendment practice throughout examination.

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

Performance Statistics

82.5%
Allow Rate
+12.5% vs TC avg
917
Total Applications
+18.4%
Interview Lift
798
Avg Prosecution Days
Based on 896 resolved cases, 2023–2026

Rejection Statute Breakdown

4.2%
§101 Eligibility
32.0%
§102 Novelty
37.6%
§103 Obviousness
22.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18271759 AMMONIA DECOMPOSITION SYSTEM Final Rejection MITSUBISHI HEAVY INDUSTRIES, LTD.
18840417 INTERNAL COMBUSTION ENGINE Final Rejection MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
18283983 PRESSED CERAMIC FLUIDIC MODULE WITH POROUS AND NON-POROUS STRUCTURES Non-Final OA CORNING INCORPORATED
18927308 METHOD USING REFRIGERANT FOR COMPRESSOR, COMPRESSOR, AND REFRIGERATION CYCLE APPARATUS Non-Final OA DAIKIN INDUSTRIES, LTD.
18607119 COMPRESSOR, REFRIGERATION APPARATUS, AND REFRIGERATING MACHINE OIL Non-Final OA DAIKIN INDUSTRIES, LTD.
18026688 Bubble Column Reactor Final Rejection LG Chem, Ltd.

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Frequently Asked Questions

What is examiner Dapinder Singh's allowance rate?

82.5% of resolved applications examined by Dapinder Singh were allowed (896 resolved cases), compared with 72.5% across Art Unit 1738 over the last five years.

Does an interview help with examiner Dapinder Singh?

This examiner's interview lift is +18.4 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

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

Applications allowed by Dapinder Singh took 798 days on average from filing to allowance.

Which art unit does examiner Dapinder Singh work in?

Dapinder Singh examines applications in Art Unit 1738 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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