Prosecution Insights
Last updated: April 19, 2026

Examiner: BURKHART, MICHAEL D

Tech Center 1600 • Art Units: 1633 1638 1653

This examiner grants 62% of resolved cases

Performance Statistics

62.5%
Allow Rate
+2.5% vs TC avg
856
Total Applications
+9.9%
Interview Lift
1212
Avg Prosecution Days
Based on 811 resolved cases, 2023–2026

Rejection Statute Breakdown

3.8%
§101 Eligibility
21.0%
§102 Novelty
27.5%
§103 Obviousness
25.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17922633 CAS9-BASED DIAGNOSTIC ASSAY AND METHODS OF USING Final Rejection PRESIDENT AND FELLOWS OF HARVARD COLLEGE
18251314 ANTI-RESPIRATORY SYNCYTIAL VIRUS (RSV) ANTIBODY CELL-BASED POTENCY ASSAY Non-Final OA MERCK SHARP & DOHME LLC
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
18465547 HUMAN APPLICATION OF ENGINEERED CHIMERIC ANTIGEN RECEPTOR (CAR) T-CELLS Non-Final OA BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
18506193 SYNTHETIC NUCLEIC ACIDS INCLUDING ASTROCYTE-DIRECTED PROMOTER CONSTRUCTS AND METHODS OF USING THE SAME Non-Final OA Eli Lilly and Company
18288817 Compositions Comprising Adeno-Associated Virus Chimera Capsid Proteins and Methods of Using the Same Non-Final OA Duke University
17920152 Hematological Parameter for Viral Infection Non-Final OA Beckman Coulter, Inc.
17768002 GENETICALLY MODIFIED HUMAN STEM CELL EXPRESSING A MUTANT HUMAN CYTOCHROME P450 2B6 PROTEIN AND ITS USE THEREOF IN THE TREATMENT OF CANCER Non-Final OA SORBONNE UNIVERSITE
17827338 INDUCTION OF ARTERIAL-TYPE OF HEMOGENIC ENDOTHELIUM (AHE) AND ENHANCEMENT OF T CELL PRODUCTION FROM PSCS THROUGH OVEREXPRESSION OF ETS FACTORS OR MODULATING MAPK/ERK SIGNALLING PATHWAYS Final Rejection Wisconsin Alumni Research Foundation
17263433 COMPOSITION FOR SUPPRESSION OF AGING, PREVENTION, AMELIORATION, OR TREATMENT OF AN AGE-RELATED DISEASE OR SYMPTOM, OR EXTENSION OF LIFESPAN Final Rejection OSAKA UNIVERSITY
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
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
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.
18147365 RNA ENCODING AN ANTIBODY Non-Final OA CureVac SE
18286835 SIGNAL SEQUENCE THAT INDUCES PROTEIN SECRETION IN INTESTINAL MICROBIOME Non-Final OA KOREA RESEARCH INSTITUTE OF BIOSCIENCE AND BIOTECHNOLOGY
17610637 AGENT THAT ENABLES SIRT7 GENE EXPRESSION AND THE USE THEREOF Final Rejection SHENZHEN UNIVERSITY
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.
18564318 SCAFFOLD FOR CELL CULTURE Non-Final OA SEA WITH, 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
18558226 METHOD FOR PRODUCING VASCULARIZED BIOLOGICAL TISSUE Non-Final OA Universitaet des Saarlandes
17921291 STABILIZATION OF POLYETHYLENEIMINE-DEOXYRIBONUCLEIC ACID COMPLEX SIZE AND ACTIVITY Non-Final OA Juno Therapeutics, Inc.
18285560 METHODS AND COMPOSITIONS FOR TREATMENT OF CYSTIC FIBROSIS Non-Final OA Spirovant Sciences, Inc.
17439921 EXPRESSION CONSTRUCTS FOR THE GENETIC MODIFICATION OF CELLS Final Rejection Deutsches Krebsforschungszentrum
18238074 POLYMERIC MICELLE COMPOSITIONS Non-Final OA UVic Industry Partnerships Inc.- Univ. of Victoria

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