Prosecution Insights
Last updated: August 17, 2026

Examiner: SPENCE, JENNIFER SUZANNE

Tech Center 1600 • Art Units: 1631 1633 1634 1651

This examiner grants 66% of resolved cases

Performance Statistics

66.1%
Allow Rate
+6.1% vs TC avg
172
Total Applications
+50.7%
Interview Lift
1335
Avg Prosecution Days
Based on 124 resolved cases, 2023–2026

Rejection Statute Breakdown

5.0%
§101 Eligibility
15.9%
§102 Novelty
44.0%
§103 Obviousness
24.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18714314 COMPOSITIONS AND METHODS FOR TREATING EXPOSURE OF SURGICAL MESH Non-Final OA MAYO FOUNDATION FOR MEDICAL EDUCATION AND RESEARCH
18716634 COMPOSITIONS AND METHODS FOR PRODUCTION AND USE OF A SCALABLE HUMAN CELL-DERIVED EXTRACELLULAR MATRIX Non-Final OA Ohio State Innovation Foundation
18182377 METHOD FOR BUILDING CO-CULTURE MODEL FOR CACO-2/RAW-264.7 CELLS INDUCED BY LIPOPOLYSACCHARIDES AND APPLICATION OF CO-CULTURE MODEL Final Rejection ZHEJIANG UNIVERSITY OF TECHNOLOGY
18017139 M13 BACTERIOPHAGE WITH A HIGH CYSTEINE CONTENT AND GENETICALLY ENGINEERABLE HYDROGELS Final Rejection Massachusetts Institute of Technology
17661057 IMMUNE CELLS EXPRESSING ENGINEERED ANTIGEN RECEPTORS Non-Final OA BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
17633294 ANTI-VIRAL CENTRAL MEMORY CD8+ VETO CELLS IN HAPLOIDENTICAL STEM CELL TRANSPLANTATION Non-Final OA Board of Regents, The University of Texas System
18690946 PIG EMBRYO-DERIVED PLURIPOTENT STEM CELLS AND USE THEREOF Non-Final OA CHINA AGRICULTURAL UNIVERSITY
18037879 METHOD FOR MANUFACTURING CELL MASS Final Rejection TOSOH CORPORATION
16482420 ENGINEERING BLOOD VESSEL CELLS FOR TRANSPLANTATION Non-Final OA CORNELL UNIVERSITY
17798719 CHIMERIC ANTIGEN RECEPTOR AND USE THEREOF Final Rejection Sichuan University

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