Prosecution Insights
Last updated: May 29, 2026

Examiner: BURKHART, MICHAEL D

Tech Center 1600 • Art Units: 1633 1638 1653

This examiner grants 62% of resolved cases

Performance Statistics

62.4%
Allow Rate
+2.4% vs TC avg
863
Total Applications
+10.9%
Interview Lift
1213
Avg Prosecution Days
Based on 819 resolved cases, 2023–2026

Rejection Statute Breakdown

3.8%
§101 Eligibility
10.7%
§102 Novelty
35.1%
§103 Obviousness
21.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17997429 MODEL-BASED CONTROL FOR COLUMN-BASED CONTINUOUS VIRAL INACTIVATION OF BIOPHARMACEUTICALS Non-Final OA Massachusetts Institute of Technology
17995671 INTEGRATION OF LARGE ADENOVIRUS PAYLOADS Final Rejection University of Washington
18506193 SYNTHETIC NUCLEIC ACIDS INCLUDING ASTROCYTE-DIRECTED PROMOTER CONSTRUCTS AND METHODS OF USING THE SAME Non-Final OA Eli Lilly and Company
18069621 CIRCULAR RNA COMPOSITIONS AND METHODS Final Rejection Orna Therapeutics, Inc.
17929574 COMPOSITIONS AND METHODS FOR ANALYTE DETECTION Non-Final OA Colorado State University Research Foundation
18118072 METHODS AND COMPOSITIONS FOR DETECTING RISK OF CANCER RELAPSE Non-Final OA MEMORIAL SLOAN-KETTERING CANCER CENTER
17292923 METHODS FOR INDUCING IMMUNE TOLERANCE Non-Final OA Translate Bio, Inc.
18029112 Use of an intervertebral disc fibrosis-inducing substance in preparation of medication Non-Final OA Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine
18537897 BACTERIA ENGINEERED TO TREAT A DISEASE OR DISORDER Non-Final OA Synlogic Operating Company, Inc.
18326637 MICROORGANISMS PROGRAMMED TO PRODUCE IMMUNE MODULATORS AND ANTI-CANCER THERAPEUTICS IN TUMOR CELLS Non-Final OA Synlogic Operating Company, Inc.
18515458 CHIMERIC ANTIGEN RECEPTOR Non-Final OA AUTOLUS LIMITED
18321517 Cell Non-Final OA AUTOLUS LIMITED
18282061 GENE THERAPY COMPOSITION AND TREATMENT OF RIGHT VENTRICULAR ARRHYTHMOGENIC CARDIOMYOPATHY Final Rejection UCL BUSINESS LTD
18558669 EXTRACELLULAR VESICLE-DIRECTED POLYPEPTIDE TAG Non-Final OA Ottawa Hospital Research Institute
18558226 METHOD FOR PRODUCING VASCULARIZED BIOLOGICAL TISSUE Non-Final OA Universitaet des Saarlandes
18285560 METHODS AND COMPOSITIONS FOR TREATMENT OF CYSTIC FIBROSIS Non-Final OA Spirovant Sciences, Inc.
18238074 POLYMERIC MICELLE COMPOSITIONS Non-Final OA UVic Industry Partnerships Inc.- Univ. of Victoria
18251368 TENASCIN-C AUTOANTIGENIC EPITOPES IN RHEUMATOID ARTHRITIS Non-Final OA Benaroya Research Institute at Virginia Mason
18310788 CANCER ERADICATING - BIO-NANOPARTICLES (CE-BNP) Non-Final OA ATHANOR BIOSCIENCES, INC.
18050834 METHODS AND COMPOSITIONS FOR THE PURIFICATION OF ADENO-ASSOCIATED VIRUS Non-Final OA Oxford Biomedica (US) LLC
18050089 ENGINEERED PLATELETS FOR TARGETED DELIVERY OF A THERAPEUTIC AGENT Non-Final OA JPV01 LTD.
17272631 METHODS AND COMPOSITIONS FOR GENETICALLY MODIFYING LYMPHOCYTES IN BLOOD OR IN ENRICHED PBMCS Non-Final OA Exuma Biotech Corp.
17179931 COMPOSITIONS FOR DELIVERY OF CARGO TO CELLS Final Rejection Sixfold Bioscience Ltd.
17439921 EXPRESSION CONSTRUCTS FOR THE GENETIC MODIFICATION OF CELLS Final Rejection Deutsches Krebsforschungszentrum

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