Prosecution Insights
Last updated: October 02, 2026

Examiner: NIEVES, NELSON J

Tech Center 3700 • Art Units: 2835 2899 3744 3752 3763

This examiner grants 75% of resolved cases

Analysis

Nelson J Nieves is an examiner in Tech Center 3700 and Art Unit 2835. The data shows 814 resolved cases and an allowance rate of 75.3%. This 75.3% rate provides a baseline for applicants to evaluate their chances of success during prosecution. The median days to allowance is 937, which establishes a timeframe for the process from filing to grant. With 814 resolved cases, the statistical evidence for these outcomes is well-established for this examiner.

The interview lift for this examiner is 16.6%. This 16.6% lift indicates that applications are more likely to be allowed if an interview is conducted. Practitioners can use the 937 median days to allowance to manage client expectations regarding the duration of the patent acquisition process. The relationship between the 75.3% allowance rate and the 16.6% interview lift suggests that direct engagement with the examiner is a productive strategy. This analysis of Art Unit 2835 is grounded in the 814 resolved cases recorded for this profile.

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
832
Total Applications
+16.6%
Interview Lift
937
Avg Prosecution Days
Based on 814 resolved cases, 2023–2026

Rejection Statute Breakdown

1.4%
§101 Eligibility
16.0%
§102 Novelty
47.6%
§103 Obviousness
34.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19075898 HEAT MANAGEMENT SYSTEM AND VEHICLE Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
19043278 HEAT EXCHANGER Non-Final OA DAIKIN INDUSTRIES, LTD.
19020814 HEAT EXCHANGER AND REFRIGERANT CYCLE APPARATUS Non-Final OA DAIKIN INDUSTRIES, LTD.
18911736 DISPLAY DEVICE, CONTROL METHOD OF DISPLAY DEVICE AND NON-TRANSITORY COMPUTER READABLE MEDIUM Non-Final OA CANON KABUSHIKI KAISHA
19100964 TUBE FOR HEAT EXCHANGER Non-Final OA VALEO SYSTEMES THERMIQUES
18984269 PROTECTIVE GRID FOR A HEAT EXCHANGER Non-Final OA VALEO SYSTEMES THERMIQUES
19052743 FULLY AUTOMATIC TEMPERATURE CONTROL SYSTEM AND CONTROL METHOD THEREOF Non-Final OA KIA CORPORATION
18996467 IMMERSION COOLING DEVICE Non-Final OA MITSUBISHI HEAVY INDUSTRIES, LTD.
19053692 DOUBLE PIPE FOR HEAT EXCHANGE Non-Final OA Sumitomo Riko Company Limited
18346303 MULTI-COMPARTMENT TRANSPORT REFRIGERATION SYSTEM Non-Final OA Carrier Corporation
18291444 SUBSTRATE SUPPORTS WITH MESOCHANNEL ASSEMBLIES Non-Final OA LAM RESEARCH CORPORATION
19063723 HEAT SINK Non-Final OA Furukawa Electric Co., Ltd.
19111950 A Plate Heat Exchanger Non-Final OA ALFA LAVAL CORPORATE AB
18913328 MULTI-FLUID HEAT EXCHANGER Non-Final OA GM GLOBAL TECHNOLOGY OPERATIONS LLC
19054731 ANTI-HEAT SOURCE FLUCTUATION HEAT EXCHANGE SYSTEM BASED ON ACTIVE FLOW REGULATION AND CONTROL METHOD THEREOF Non-Final OA Kunming University of Science and Technology
18780820 Heat Pump with Multiple Mini-Compressors Final Rejection Rheem Manufacturing Company
18278150 A BRAZED PLATE HEAT EXCHANGER Non-Final OA SWEP INTERNATIONAL AB

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