Prosecution Insights
Last updated: May 29, 2026

Examiner: LEVIN, JOEL D

Tech Center 1600 • Art Units: 1600 1633

This examiner grants 52% of resolved cases

Performance Statistics

52.3%
Allow Rate
-7.7% vs TC avg
98
Total Applications
+58.4%
Interview Lift
1517
Avg Prosecution Days
Based on 65 resolved cases, 2023–2026

Rejection Statute Breakdown

2.8%
§101 Eligibility
12.2%
§102 Novelty
72.0%
§103 Obviousness
6.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17721003 METHODS OF PERFUSION CULTURING A MAMMALIAN CELL Non-Final OA Genzyme Corporation
17629286 REGULATABLE EXPRESSION SYSTEMS Final Rejection Novartis AG
17740102 TARGETED INTEGRATION AT ALPHA-GLOBIN LOCUS IN HUMAN HEMATOPOIETIC STEM AND PROGENITOR CELLS Non-Final OA THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
16312973 BIO-ELECTRIC NOSE Non-Final OA NORTHWESTERN UNIVERSITY
17369271 METHODS FOR STIMULATING THE PROLIFERATION AND DIFFERENTIATION OF EUKARYOTIC CELLS Non-Final OA PURDUE RESEARCH FOUNDATION
19234245 TREATMENT OF DYSTROPHINOPATHIES WITH MICRODYSTROPHIN GENE THERAPY CONSTRUCTS Final Rejection REGENXBIO INC.
17605207 COMPOSITIONS AND METHODS CHARACTERIZING METASTASIS Final Rejection Dana-Farber Cancer Institute, Inc.
17426566 CELL CULTURE SUBSTRATE Non-Final OA DAI NIPPON PRINTING CO., LTD.
17777740 MESENCHYMAL STEM CELL DERIVED EXTRACELLULAR VESICLES LOADED WITH AT LEAST ONE PHOTOSENSITIZER AND USES THEREOF FOR THE TREATMENT OF PERITONEAL CARCINOMATOSIS Non-Final OA UNIVERSITÉ PARIS CITÉ
17714593 DONOR ORGAN PRESERVATION USING BOTH STATIC COLD STORAGE AND EX VIVO ORGAN PERFUSION Final Rejection University Health Network
17422646 USE OF MESENCHYMAL STEM CELL SHEETS FOR PREVENTING UTERINE SCAR FORMATION Non-Final OA University of Utah Research Foundation
18042323 DENTAL AND PERIODONTAL APPLICATION OF FIBROBLASTS Non-Final OA FIGENE, LLC
17790052 METHODS AND COMPOSITIONS FOR BINDING IMMUNOGLOBULIN PROTEIN TARGETING Non-Final OA Sanford Burnham Prebys Medical Discovery Institute
17755368 METHODS FOR THE PRODUCTION OF PSILOCYBIN AND INTERMEDIATES OR SIDE PRODUCTS Final Rejection MIAMI UNIVERSITY
17609640 IMPROVED GENE EDITING SYSTEM Final Rejection Suzhou Qi Biodesign biotechnology Company Limited
17776932 METHODS OF CELL SELECTION Non-Final OA LONZA LTD
17292107 PATIENT-DERIVED AMYLOID XENOGRAFT NON-HUMAN ANIMAL MODEL Non-Final OA Neurimmune AG
17292315 PHARMACEUTICAL COMPOSITION CONTAINING PROTEIN KINASE C ACTIVATOR-TREATED STEM CELLS OR CULTURE THEREOF FOR PREVENTING OR TREATING AUTOIMMUNE DISEASES Non-Final OA CORESTEM CO.,LTD.
17948862 NOVEL CELL LINE Final Rejection uniQure biopharma B.V.
17825179 METHOD AND DEVICE TO PRESERVE ORGANS AND TISSUE FOR TRANSPLANTATION Final Rejection SoftWave Tissue Regeneration Technologies, Inc.

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