Prosecution Insights
Last updated: May 29, 2026

Examiner: CHESTNUT, BARRY A

Tech Center 1600 • Art Units: 1648 1671 1672

This examiner grants 74% of resolved cases

Performance Statistics

73.5%
Allow Rate
+13.5% vs TC avg
752
Total Applications
+5.9%
Interview Lift
988
Avg Prosecution Days
Based on 736 resolved cases, 2023–2026

Rejection Statute Breakdown

0.4%
§101 Eligibility
11.6%
§102 Novelty
66.3%
§103 Obviousness
7.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18363050 GLYCAN MODIFIED NUCLEIC ACIDS, METHODS OF PREPARATION, AND THERAPEUTIC USES Non-Final OA The Board of Trustees of the Leland Stanford Junior University
17764509 ENGINEERED MUSCLE TARGETING COMPOSITIONS Non-Final OA MASSACHUSETTS INSTITUTE OF TECHNOLOGY
18277186 METHODS AND RELATED ASPECTS FOR DETECTING DISEASES, CONDITIONS, OR DISORDERS IN SUBJECTS USING EXTRACELLUAR VESICLES Non-Final OA THE JOHNS HOPKINS UNIVERSITY
18338128 SEQUENCING MICROBIAL CELL-FREE NUCLEIC ACIDS TO DETECT INFLAMMATION, SECONDARY INFECTION, AND DISEASE SEVERITY Non-Final OA University of Pittsburgh - Of the Commonwealth System of Higher Education
18480009 USE AND DETECTION METHOD OF FLAVIVIRUS PROTEIN MICROARRAY Non-Final OA NATIONAL CHENG KUNG UNIVERSITY
18026943 PIV5-BASED COVID-19 VACCINE Final Rejection UNIVERSITY OF GEORGIA RESEARCH FOUNDATION, INC.
18473064 ORTHOPOXVIRUS SEROLOGY ASSAYS Non-Final OA Meso Scale Technologies, LLC.
18286705 EPSTEIN-BARR VIRUS MRNA VACCINES Non-Final OA ModernaTX, Inc.
18282097 THERAPEUTIC USE OF SARS-COV-2 MRNA DOMAIN VACCINES Non-Final OA ModernaTX, Inc.
18284987 METHODS FOR CHARACTERIZING THE IMMUNE RESPONSE OF A SUBJECT TO A DENGUE VIRUS COMPOSITION Non-Final OA TAKEDA VACCINES, INC.
17995158 Stabilized Vaccine Compositions Non-Final OA Janssen Vaccines & Prevention B.V.
18213136 COVID MULTI-BIOME Non-Final OA Microbiota I - Center (Magic) Limited
18258562 METHOD FOR DETERMINING ACTIVE SARS-COV-2-INFECTIONS Non-Final OA CEINGE BIOTECNOLOGIE AVANZATE FRANCO SALVATORE S.C. A R.L.
17991525 COMPOSITIONS AND DEVICES FOR VACCINE RELEASE AND USES THEREOF Non-Final OA VAXESS TECHNOLOGIES, INC.
17920625 Suprastructure Comprising Modified Influenza Hemagglutinin With Reduced Interaction With Sialic Acid Non-Final OA Brian J. Ward

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