Prosecution Insights
Last updated: October 02, 2026

Examiner: COMINGS, DANIEL C

Tech Center 3700 • Art Units: 3744 3763 3784

This examiner grants 64% of resolved cases

Analysis

Daniel C. Comings has handled 681 resolved cases within Tech Center 3700. His work in Art Unit 3744 includes an allowance rate of 63.9 percent. This statistic is a key metric for practitioners to use when assessing the probability of success and for developing a comprehensive prosecution strategy for their clients.

The median days to allowance for this examiner is 1246. This duration is a significant consideration for managing the expectations of stakeholders regarding the timeline for patent issuance. A timeframe of 1246 days provides a clear benchmark for the time and resources required to navigate the examination process.

The interview lift for this examiner is 36.9 percent. This is a substantial increase relative to the 63.9 percent allowance rate, suggesting that interviews are a highly effective tool for overcoming rejections. The 36.9 percent lift provides a strong justification for practitioners to engage in direct dialogue with the examiner to clarify technical points and expedite the path to allowance.

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

Performance Statistics

63.9%
Allow Rate
-6.1% vs TC avg
705
Total Applications
+36.9%
Interview Lift
1246
Avg Prosecution Days
Based on 681 resolved cases, 2023–2026

Rejection Statute Breakdown

2.4%
§101 Eligibility
18.4%
§102 Novelty
51.9%
§103 Obviousness
25.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18967407 REFRIGERATOR AND METHOD FOR CONTROLLING THE SAME Non-Final OA Samsung Electronics Co., Ltd.
18518030 AIR CONDITIONING UNIT AND AIR CONDITIONING SYSTEM Non-Final OA DAIKIN INDUSTRIES, LTD.
18374754 REFRIGERATION CYCLE APPARATUS Non-Final OA DAIKIN INDUSTRIES, LTD.
18753098 METHOD FOR SETTING AN AIR CONDITIONER Final Rejection MAHLE INTERNATIONAL GMBH
19083418 REFRIGERATION CYCLE DEVICE AND AIR CONDITIONER EQUIPPED WITH THE SAME Non-Final OA SHARP KABUSHIKI KAISHA
18988963 REFRIGERATION CYCLE DEVICE Non-Final OA Mitsubishi Electric Corporation
18866244 AIR CONDITIONING SYSTEM Non-Final OA Mitsubishi Electric Corporation
18834686 REFRIGERATION CYCLE SYSTEM Final Rejection Mitsubishi Electric Corporation
18970272 SYSTEMS AND METHODS FOR DETERMINING STARTUP PRESSURE RATIO FOR DYNAMIC COMPRESSORS Non-Final OA Copeland LP
18671326 Climate-Control System With Sensible and Latent Cooling Final Rejection Copeland LP
18965871 HYBRID HEATING SYSTEM WITH HUMIDITY CONTROL Non-Final OA Midea Group Co., Ltd.
18329032 CONTROLLING VAPOR COMPRESSION COOLING IN A THERMAL SYSTEM Final Rejection Atieva, Inc.

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