Prosecution Insights
Last updated: October 26, 2026

Darrin D Dunn, USPTO Patent Examiner

Listed by the USPTO as DUNN, DARRIN D

Tech Center 3700 • Art Units: 1738 2115 2117 2118 2121 2126 3723

This examiner grants 75% of resolved cases

Analysis

DUNN, DARRIN D is a USPTO patent examiner in tech center 3700 and art unit 1738. The profile records 922 resolved cases, a 75.3% allowance rate, and a median of 1152 days to allowance. Interviews have a 24.4% lift, indicating a positive association that supports considering examiner discussions during prosecution.

The listed companies are Johnson Controls Inc., Rolls-Royce plc, and Black & Decker Inc. The listed firms are Foley & Lardner LLP, Shumaker & Sieffert, P.A., and WOMBLE BOND DICKINSON (US) LLP/. The case volume provides a substantial historical foundation for planning, while the pendency figure makes timing and orderly response preparation relevant.

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

Performance Statistics

75.3%
Allow Rate
+5.3% vs TC avg
962
Total Applications
+24.4%
Interview Lift
1152
Avg Prosecution Days
Based on 922 resolved cases, 2023–2026

Rejection Statute Breakdown

15.3%
§101 Eligibility
11.3%
§102 Novelty
57.5%
§103 Obviousness
10.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18593324 POWDER MONITORING FOR ADDITIVE MANUFACTURING SYSTEMS Non-Final OA Rolls-Royce plc
18593294 POWDER MONITORING FOR ADDITIVE MANUFACTURING SYSTEMS Final Rejection Rolls-Royce plc
18615231 APPARATUS AND METHOD FOR MANUFACTURING A DISPLAY APPARATUS Non-Final OA Samsung Display Co., Ltd.
18620768 DISPLAY CONTROL FOR SMART THERMOSTAT Final Rejection Google LLC
18109487 SYSTEM, DEVICE AND PROCESS FOR PROGRAMMING POWER TOOLS Non-Final OA Black & Decker Inc.
18164020 SYSTEM, DEVICE AND PROCESS FOR PROGRAMMING POWER TOOLS Final Rejection Black & Decker Inc.
18650214 REFRIGERATION MANAGEMENT FOR INTERCONNECTED SYSTEMS Final Rejection INTERNATIONAL BUSINESS MACHINES CORPORATION
18910588 THERMAL OPTIMIZATION FOR DATA CENTERS Non-Final OA CARRIER CORPORATION
18627437 SYSTEM AND METHOD TO CONTROL INDOOR AIR QUALITY IN A MULTI-ZONE ENVIRONMENT Non-Final OA Carrier Corporation
18377591 EDGE AND HOT SPOT COMPENSATION TECHNIQUES IN CHEMICAL MECHANICAL POLISHING Non-Final OA Applied Materials, Inc.

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Frequently Asked Questions

What is examiner Darrin D Dunn's allowance rate?

75.3% of resolved applications examined by Darrin D Dunn were allowed (922 resolved cases), compared with 72.5% across Art Unit 1738 over the last five years.

Does an interview help with examiner Darrin D Dunn?

This examiner's interview lift is +24.4 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Darrin D Dunn take to allow a patent?

Applications allowed by Darrin D Dunn took 1,152 days on average from filing to allowance.

Which art unit does examiner Darrin D Dunn work in?

Darrin D Dunn examines applications in Art Unit 1738 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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