Prosecution Insights
Last updated: April 19, 2026

Examiner: SHEN, WU CHENG WINSTON

Tech Center 1600 • Art Units: 1621 1628 1632 1634 1682

This examiner grants 24% of resolved cases

Performance Statistics

24.0%
Allow Rate
-36.0% vs TC avg
238
Total Applications
+25.9%
Interview Lift
1551
Avg Prosecution Days
Based on 225 resolved cases, 2023–2026

Rejection Statute Breakdown

3.8%
§101 Eligibility
20.1%
§102 Novelty
41.7%
§103 Obviousness
25.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17653114 Systems and Methods to Identify Pancreatic Ductal Adenocarcinoma and Uses Thereof Final Rejection The Board of Trustees of the Leland Stanford Junior University
18166782 LIVER-SPECIFIC DRUG DELIVERY CARRIER COMPRISING NUCLEIC ACID NANOPARTICLE AND CHOLESTEROL AND USE THEREOF Non-Final OA KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
17907837 EPITHELIAL CELL TUBE FOR TRACHEAL TRANSPLANTATION Final Rejection SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
17919364 Methods for Extending the Shelf-life of Stored Donor Blood and/or Red Blood Cells and Treated Red Blood Cell Compositions Produced Thereby Non-Final OA Ohio University
17779783 AN ACELLULAR NERVE GRAFT Non-Final OA ROYAL COLLEGE OF SURGEONS IN IRELAND
17915232 METHOD FOR EDITING TARGET RNA Final Rejection EditForce, Inc.
18001259 THERAPEUTIC USE OF OF CELL-FREE FAT EXTRACT FOR PULMONARY DISEASES Non-Final OA Shanghai Seme Cell Technology Co., Ltd.
17916166 COMPOSITION Non-Final OA INOCELLS B.V.
17911930 RECOMBINANT PROTEIN PRODUCTION IN INSECTS Final Rejection Proteinea, Inc.
17608422 A Method for Predicting Prognosis of Cancer and the Composition Thereof Final Rejection DCGEN CO, LTD.

Facing This Examiner?

IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.

Build Your Strategy

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month