Prosecution Insights
Last updated: October 27, 2026

Dario Antonio Deleon, USPTO Patent Examiner

Listed by the USPTO as DELEON, DARIO ANTONIO

Tech Center 3700 • Art Units: 3763

This examiner grants 65% of resolved cases

Analysis

DELEON, DARIO ANTONIO is a USPTO patent examiner in tech center 3700 and art unit 3763. The record covers 222 resolved cases, with an allowance rate of 65.3%. The median time to allowance is 988 days. Interview lift is 30.9%, indicating that interviews have a meaningful reported relationship with allowance outcomes.

The principal companies are LG Electronics Inc., Carrier Corporation, and Samsung Electronics Co., Ltd. The leading firms are KED & ASSOCIATES, LLP, Anova Law Group PLLC, and Cantor Colburn LLP - Carrier. Practitioners can use interviews to address claim issues directly while maintaining focused written responses for the examination record.

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

Performance Statistics

65.3%
Allow Rate
-4.7% vs TC avg
271
Total Applications
+30.9%
Interview Lift
988
Avg Prosecution Days
Based on 222 resolved cases, 2023–2026

Rejection Statute Breakdown

0.2%
§101 Eligibility
12.5%
§102 Novelty
55.9%
§103 Obviousness
31.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19061442 ICE MAKER AND REFRIGERATOR Final Rejection LG Electronics Inc.
18921828 REFRIGERATOR Non-Final OA LG ELECTRONICS INC.
18775751 HEAT SUPPLY APPARATUS Final Rejection LG ELECTRONICS INC.
18671437 ICE MAKER AND REFRIGERATOR COMPRISING SAME Non-Final OA LG ELECTRONICS INC.
19091147 AIR CONDITIONER AND CONTROL METHOD THEREOF Non-Final OA Samsung Electronics Co., Ltd.
18658175 ELECTRONIC APPARATUS FOR MANAGING WATER TANK AND CONTROL METHOD THEREOF Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18777667 AIR DUCT FOR A REFRIGERATOR Final Rejection ILLINOIS TOOL WORKS INC.
19135808 AIR CONDITIONER Non-Final OA FUJITSU GENERAL LIMITED
18880197 HEAT EXCHANGER AND REFRIGERATION CYCLE APPARATUS Non-Final OA Mitsubishi Electric Corporation
18834685 AIR CONDITIONER OUTDOOR UNIT Final Rejection Mitsubishi Electric Corporation
18665754 HEAT EXCHANGE SYSTEM AND VEHICLE Non-Final OA Yinwang Intelligent Technologies Co., Ltd.
19213534 WATER CHILLER THERMAL STORAGE Non-Final OA Carrier Corporation
19178050 FLUID DISTRIBUTOR FOR A SHELL-AND-TUBE FLOODED EVAPORATOR Non-Final OA Carrier Corporation
18334601 COMPRESSOR ISOLATION MOLDED INSERT Final Rejection Carrier Corporation
18990117 TRANSPORT METHOD, REFRIGERATION METHOD, REFRIGERATION SYSTEM, AND HOSE FOR REFRIGERATION SYSTEM Non-Final OA DAIKIN INDUSTRIES, LTD.
18995075 MOUNTING BRACKET AND AIR CONDITIONER Non-Final OA GD MIDEA AIR-CONDITIONING EQUIPMENT CO., LTD.
18872173 WINDOW AIR CONDITIONER Non-Final OA GD MIDEA AIR-CONDITIONING EQUIPMENT CO., LTD.

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Frequently Asked Questions

What is examiner Dario Antonio Deleon's allowance rate?

65.3% of resolved applications examined by Dario Antonio Deleon were allowed (222 resolved cases), compared with 60.3% across Art Unit 3763 over the last five years.

Does an interview help with examiner Dario Antonio Deleon?

This examiner's interview lift is +30.9 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Dario Antonio Deleon take to allow a patent?

Applications allowed by Dario Antonio Deleon took 988 days on average from filing to allowance.

Which art unit does examiner Dario Antonio Deleon work in?

Dario Antonio Deleon examines applications in Art Unit 3763 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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