Prosecution Insights
Last updated: October 27, 2026

Eric S Ruppert, USPTO Patent Examiner

Listed by the USPTO as RUPPERT, ERIC S

Tech Center 3700 • Art Units: 1772 3744 3763

This examiner grants 60% of resolved cases

Performance Statistics

60.1%
Allow Rate
-9.9% vs TC avg
837
Total Applications
+23.9%
Interview Lift
1018
Avg Prosecution Days
Based on 789 resolved cases, 2023–2026

Rejection Statute Breakdown

0.4%
§101 Eligibility
17.7%
§102 Novelty
50.8%
§103 Obviousness
29.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18396560 HEAT EXCHANGER Final Rejection LG ELECTRONICS INC.
19004035 HIGH THERMAL CONDUCTIVITY STRUCTURE AND METHOD OF MANUFACTURING THE SAME Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18767150 FIN DEVICE FOR HEAT EXCHANGER Final Rejection MAHLE INTERNATIONAL GMBH
18461878 THERMOSYPHON REBOILER MODIFICATION Final Rejection Saudi Arabian Oil Company
18611693 THERMAL ENERGY STORAGE DEVICE AND SYSTEM Non-Final OA Mitsubishi Electric Corporation
18997439 SPIRAL HEATSINKS FOR IMPINGEMENT COOLING Non-Final OA THE JOHNS HOPKINS UNIVERSITY
18868061 THERMAL DEVICE Non-Final OA KYOCERA Corporation
19090806 COOLING DEVICE, SUBSTRATE PROCESSING APPARATUS, AND COOLING METHOD Non-Final OA Tokyo Electron Limited
18902382 ADDITIVELY MANUFACTURED HEAT EXCHANGER SUPPORTS AND METHOD OF MANUFACTURE Non-Final OA RTX Corporation
18922465 HEAT EXCHANGER AND REFRIGERATION APPARATUS Final Rejection DAIKIN INDUSTRIES, LTD.
18926990 TITANIUM OR TITANIUM ALLOY HEAT EXCHANGER Non-Final OA L'Air Liquide, Societe Anonyme pour l'Etude et l’Exploitation des Procedes Georges Claude
18441437 MICRO VAPOR CYCLE CONDENSER UNIT Non-Final OA Honeywell International Inc.
17591375 HEAT TRANSFER COMPOSITIONS, METHODS, AND SYSTEMS Final Rejection HONEYWELL INTERNATIONAL INC.
18884294 OSCILLATING HEAT PIPES WITH RANDOMLY VARYING CHANNEL SIZE Non-Final OA Raytheon Company
18426054 Thermal Energy Transfer Assembly And Method Of Making The Same Final Rejection BorgWarner Inc.
18119130 HEAT EXCHANGER WITH CROSSING HEAT EXCHANGE TUBES Final Rejection Raytheon Technologies Corporation

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Frequently Asked Questions

What is examiner Eric S Ruppert's allowance rate?

60.1% of resolved applications examined by Eric S Ruppert were allowed (789 resolved cases), compared with 59.5% across Art Unit 1772 over the last five years.

Does an interview help with examiner Eric S Ruppert?

This examiner's interview lift is +23.9 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Eric S Ruppert take to allow a patent?

Applications allowed by Eric S Ruppert took 1,018 days on average from filing to allowance.

Which art unit does examiner Eric S Ruppert work in?

Eric S Ruppert examines applications in Art Unit 1772 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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