Prosecution Insights
Last updated: October 02, 2026

Examiner: WIEST, PHILIP R

Tech Center 3700 • Art Units: 3761 3781

This examiner grants 81% of resolved cases

Analysis

Philip R. Wiest serves as an examiner in Art Unit 3761, which is part of Tech Center 3700. He has managed 957 resolved cases, providing a robust statistical foundation for his profile. His allowance rate is 81.3 percent, indicating that a strong majority of applications he reviews reach a grant. This 81.3 percent rate suggests a favorable environment for applicants in this art unit.

The data shows an interview lift of 16.3 percent for this examiner. This positive lift indicates that direct communication is a beneficial tool for advancing applications and resolving outstanding issues. Practitioners should utilize the 16.3 percent lift to improve their chances of success, as it represents a significant advantage over standard written prosecution. The 957 resolved cases demonstrate the effectiveness of this strategy.

The median time to allowance is 1140 days. This 1140-day timeframe serves as a benchmark for the expected duration of the prosecution process. By analyzing the 81.3 percent allowance rate and the 1140-day median, attorneys can develop effective strategies and manage client expectations. These metrics provide a comprehensive view of the examination trends in Art Unit 3761.

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

Performance Statistics

81.3%
Allow Rate
+11.3% vs TC avg
973
Total Applications
+16.3%
Interview Lift
1140
Avg Prosecution Days
Based on 957 resolved cases, 2023–2026

Rejection Statute Breakdown

1.9%
§101 Eligibility
20.3%
§102 Novelty
42.1%
§103 Obviousness
20.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18719637 Wound Dressings and Methods of Making the Same Non-Final OA Solventum Intellectual Properties Company
18551832 PORTABLE HEMODIALYSIS SYSTEMS Non-Final OA University of Washington
18138215 METHODS AND SYSTEMS FOR HIGH-THROUGHPUT BLOOD COMPONENT COLLECTION Non-Final OA Terumo BCT, Inc.
18353502 SINGLE LUMEN DRAINAGE CATHETER WITH TIP ANCHOR Non-Final OA Merit Medical Systems, Inc.
18717278 DISPOSABLE SET AND EXTRACORPOREAL BLOOD TREATMENT APPARATUS FOR PREVENTING DEGASSING IN AN INFUSION FLUID LINE Non-Final OA GAMBRO LUNDIA AB
18260394 WHEELCHAIR SECURABLE URINE COLLECTION SYSTEMS AND RELATED METHODS Final Rejection PureWick Corporation
18094535 ENDOVASCULAR APPARATUS FOR PERFUSING ORGANS IN A BODY Final Rejection University of Pittsburgh - Of the Commonwealth System of Higher Education
18960493 AORTIC CANNULA FOR EX VIVO ORGAN CARE SYSTEM Non-Final OA TransMedics, Inc.

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