Prosecution Insights
Last updated: October 02, 2026

Examiner: RUPPERT, ERIC S

Tech Center 3700 • Art Units: 1772 3744 3763

This examiner grants 60% of resolved cases

Analysis

Eric S Ruppert is in Art Unit 1772 of Tech Center 3700. He has resolved 777 cases with an allowance rate of 59.8%. The interview lift is 24.7%, indicating that interviews are a useful tool for practitioners. The median days to allowance is 1020.

The 59.8% allowance rate shows that more than half of the applications are successful. The 24.7% interview lift suggests that direct communication is a very effective way to improve those odds. Practitioners should expect a median duration of 1020 days for their cases to reach an allowance. The 777 resolved cases provide a robust dataset, showing that the examiner is responsive to interviews and maintains a consistent pace of prosecution in Art Unit 1772.

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

Performance Statistics

59.8%
Allow Rate
-10.2% vs TC avg
822
Total Applications
+24.3%
Interview Lift
1018
Avg Prosecution Days
Based on 781 resolved cases, 2023–2026

Rejection Statute Breakdown

0.4%
§101 Eligibility
17.4%
§102 Novelty
51.4%
§103 Obviousness
28.8%
§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.
18830715 COOLING STATION Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18922465 HEAT EXCHANGER AND REFRIGERATION APPARATUS Final Rejection DAIKIN INDUSTRIES, LTD.
18649208 HEAT EXCHANGER HAVING A MIXING CHAMBER WITH LOUVERS Non-Final OA PRATT & WHITNEY CANADA CORP.
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 Final Rejection Mitsubishi Electric Corporation
18868061 THERMAL DEVICE Non-Final OA KYOCERA Corporation
18902382 ADDITIVELY MANUFACTURED HEAT EXCHANGER SUPPORTS AND METHOD OF MANUFACTURE Non-Final OA RTX Corporation
18002898 VAPOR CHAMBER AND MANUFACTURING METHOD OF VAPOR CHAMBER Non-Final OA FURUKAWA ELECTRIC CO., LTD.
19090806 COOLING DEVICE, SUBSTRATE PROCESSING APPARATUS, AND COOLING METHOD Non-Final OA Tokyo Electron Limited
17591375 HEAT TRANSFER COMPOSITIONS, METHODS, AND SYSTEMS Final Rejection HONEYWELL INTERNATIONAL INC.
18708341 HEAT EXCHANGER Final Rejection Hanon Systems
18324057 AIR HANDLER Non-Final OA Rheem Manufacturing Company
18438516 HEAT EXCHANGER ASSEMBLY OF THERMAL RETENTION APPARATUS FOR HEATING A LIQUID ON DEMAND Non-Final OA PHASESTOR LLC
18119130 HEAT EXCHANGER WITH CROSSING HEAT EXCHANGE TUBES Final Rejection Raytheon Technologies Corporation

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