Prosecution Insights
Last updated: April 19, 2026

Examiner: KOSAR, AARON J

Tech Center 1600 • Art Units: 1651 1655 1657

This examiner grants 71% of resolved cases

Performance Statistics

71.0%
Allow Rate
+11.0% vs TC avg
782
Total Applications
+30.6%
Interview Lift
1292
Avg Prosecution Days
Based on 770 resolved cases, 2023–2026

Rejection Statute Breakdown

9.1%
§101 Eligibility
17.8%
§102 Novelty
29.2%
§103 Obviousness
29.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18553231 EFFICIENT BIOCOMPATIBLE CRYOPRESERVATION MEDIUM THAT ELIMINATES THE NEED FOR CELL PERMEATING CRYOPROTECTANTS Non-Final OA THE CURATORS OF THE UNIVERSITY OF MISSOURI
18302111 SYSTEMS AND METHODS FOR EX VIVO PERFUSION OF VERTEBRATE TISSUE Non-Final OA THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA
17927681 EX-VIVO HEART PERFUSION SYSTEMS Non-Final OA UPMC
18335561 SOFT, CHEWABLE AND ORALLY DISSOLVABLE AND/OR DISINTEGRABLE PRODUCTS Non-Final OA Philip Morris USA Inc.
18389152 CAPSULE-CONTAINING POUCHED PRODUCT FOR ORAL USE Non-Final OA R.J. REYNOLDS TOBACCO COMPANY
18364562 DECELLULARIZED HEART VALVE (DHV) COMPOSITE, AND PREPARATION METHOD AND USE THEREOF Non-Final OA UNION HOSPITAL TONGJI MEDICAL COLLEGE HUST
17906602 DEVICE FOR PERFUSION AND PRESERVATION OF TISSUE SPECIMENS EX VIVO Non-Final OA IMPERIAL COLLEGE INNOVATIONS LIMITED
17605845 ANTHOCYANIN EXTRACTION METHODS Final Rejection WiSys Technology Foundation, Inc.
18039849 THYMIC CONSTRUCTS AND USES THEREOF Non-Final OA THE FRANCIS CRICK INSTITUTE LIMITED
18029316 APPARATUS AND METHODS FOR CONTROLLING ORGAN TEMPERATURE PRIOR TO AND/OR DURING TRANSPLANTATION PROCEDURES Non-Final OA THE UNIVERSITY OF SASKATCHEWAN

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