Prosecution Insights
Last updated: October 02, 2026

Examiner: DUONG, THO V

Tech Center 3700 • Art Units: 3743 3744 3763

This examiner grants 67% of resolved cases

Analysis

Tho V. Duong serves in Tech Center 3700 and Art Unit 3743. He has overseen a high volume of 1218 resolved cases. This large caseload provides a robust statistical foundation for evaluating his examination style in the mechanical and manufacturing arts. His extensive experience across these 1218 cases suggests a consistent and well-established approach to the patenting process.

The examiner's allowance rate is 67.0 percent. This is a solid figure that indicates a good probability of success for applicants. He also shows an interview lift of 17.5 percent. This significant lift suggests that interviews are a highly effective tool for overcoming rejections. The 17.5 percent increase in allowance probability following an interview is a clear indication that direct communication is a valuable strategy for practitioners working with Duong.

The median days to allowance for his cases is 1206. This timeframe indicates a longer prosecution cycle. The combination of a 67.0 percent allowance rate and a 1206-day median suggests a predictable but potentially time-consuming path to grant. Practitioners should consider the 17.5 percent interview lift as a key tactic to navigate this 1206-day timeline and ensure that their applications reach a favorable resolution as efficiently as possible.

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

Performance Statistics

67.0%
Allow Rate
-3.0% vs TC avg
1,243
Total Applications
+17.5%
Interview Lift
1206
Avg Prosecution Days
Based on 1218 resolved cases, 2023–2026

Rejection Statute Breakdown

0.3%
§101 Eligibility
30.6%
§102 Novelty
42.7%
§103 Obviousness
24.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18558668 COOLING STRUCTURE, POWER MODULE COMPRISING SUCH A COOLING STRUCTURE, ELECTRICAL POWER CONVERTER, SUCH AS AN INVERTER, COMPRISING SUCH A POWER MODULE Final Rejection Valeo eAutomotive Germany GmbH
18604515 MICRO-CHANNEL HEAT EXCHANGER AND HEAT PUMP SYSTEM HAVING THE SAME Final Rejection Carrier Corporation
18361602 HEAT PIPE Non-Final OA Furukawa Electric Co., Ltd.
18966245 LOW-PRESSURE HEAT PIPES AND HEAT TRANSFER METHODS USING LOW-PRESSURE FOR HEAT PIPES Non-Final OA HONEYWELL INTERNATIONAL INC.
18672027 HEATING ELEMENT COOLING STRUCTURE AND METHOD FOR MANUFACTURING SAME Final Rejection KMW INC.
17922963 AIR CONDITIONER OUTDOOR UNIT Non-Final OA MIDEA GROUP CO., LTD.
19048720 AIR CONDITIONER FOR VEHICLE Non-Final OA Hanon Systems
18248471 COOLER WITH TWO SUBSTANTIALLY PARALLEL FLOW CHAMBERS AND THREE SUBSTANTIALLY PARALLEL PLATES Non-Final OA Hanon Systems
18589377 HEAT EXCHANGER PLATE Final Rejection BENTELER AUTOMOBILTECHNIK GMBH
19081531 LIQUID COOLING ASSEMBLY Non-Final OA COOLER MASTER CO., LTD.
18207527 COMPOSITE HEAT EXCHANGE APPARATUS FOR A TURBINE ENGINE Non-Final OA Raytheon Technologies Corporation

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