Prosecution Insights
Last updated: April 19, 2026

Examiner: CHEN, STACY BROWN

Tech Center 1600 • Art Units: 1648 1671 1672

This examiner grants 66% of resolved cases

Performance Statistics

66.2%
Allow Rate
+6.2% vs TC avg
954
Total Applications
+40.3%
Interview Lift
1155
Avg Prosecution Days
Based on 914 resolved cases, 2023–2026

Rejection Statute Breakdown

4.9%
§101 Eligibility
17.3%
§102 Novelty
29.3%
§103 Obviousness
30.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17639442 Self-Assembling Protein Nanostructures Displaying Paramyxovirus and/or Pneumovirus F Proteins and Their Use Final Rejection UNIVERSITY OF WASHINGTON
17632542 METHODS AND COMPOSITIONS FOR STABILIZED RECOMBINANT FLAVIVIRUS E PROTEIN DIMERS Non-Final OA The University of North Carolina at Chapel Hill
17050115 INDICATOR BACTERIOPHAGE FOR SELECTING AND MONITORING FOR EFFICACY OF THERAPEUTICS AND METHODS FOR USING SAME Non-Final OA LABORATORY CORPORATION OF AMERICA HOLDINGS
18347698 SELF-AMPLIFYING RNA ENCODING AN INFLUENZA VIRUS ANTIGEN Non-Final OA PFIZER INC.
18045967 RNA MOLECULES Non-Final OA Pfizer Inc.
18318842 DELIVERY OF BIOMOLECULES TO PBMCs TO MODIFY AN IMMUNE RESPONSE Non-Final OA STEMCELL TECHNOLOGIES CANADA INC.
17563780 FORMULATIONS OF ACTIVATING ANTIGEN CARRIERS Non-Final OA STEMCELL TECHNOLOGIES CANADA INC.
17761459 HUMAN RESPIRATORY SYNCYTIAL VIRUS STRAIN AND ITS USE Final Rejection UNIVERSITEIT ANTWERPEN
18024868 VACCINE FOR VIRAL PATHOGENS Non-Final OA THE UNIVERSITY OF BRITISH COLUMBIA
17802936 COMPOSITIONS COMPRISING SELF-ASSEMBLING VACCINES AND METHODS OF USING THE SAME Non-Final OA The Wistar Institute of Anatomy and Biology
18418050 MULTI-CBV VACCINE FOR PREVENTING OR TREATING TYPE I DIABETES Non-Final OA Vactech Oy
18044245 FUSION PROTEIN COMPRISING CORONAVIRUS-DERIVED RECEPTOR-BINDING DOMAIN AND NUCLEOCAPSID PROTEIN, AND USE THEREOF Non-Final OA GI CELL, INC.
18261811 INFORMATION PROVISION METHOD FOR EXAMINING ACTIVE IMMUNITY BY USING PRODUCTION OF NEUTRALIZING ANTIBODIES AND INTERFERON GAMMA Non-Final OA BODITECH MED INC.
17621125 ATTENUATED DENGUE VIRUSES Non-Final OA CODAGENIX INC.
17997434 SARS-COV-2 VIRAL PROTEINS AND USE THEREOF Non-Final OA Institut Pasteur
17907424 DEFECTIVE INTERFERING VIRAL GENOMES Non-Final OA INSTITUT PASTEUR
18266486 USE OF VACCINE COMPOSITIONS BASED ON SARS-COV-2 RECEPTOR BINDING DOMAIN IN DELIVERING PROTECTIVE IMMUNITY Non-Final OA Centro de Inmunología Molecular
18021731 COMPOSITIONS OF SARS-COV-2 VACCINES BASED ON THE RECEPTOR BINDING DOMAIN, EXPRESSED AS A DIMER, AND THE OUTER MEMBRANE VESICLE OF MENINGOCOCCAL GROUP B BACTERIA Non-Final OA Centro de Inmunología Molecular
18265008 DIAGNOSTIC TESTING Non-Final OA PARAYTEC LTD
18038673 YEAST-BASED EXPRESSION OF THERAPEUTIC PROTEINS IN VIVO Non-Final OA ESPEROVAX INC.
17907532 METHODS TO GENERATE VACCINE COMPOSITIONS THAT PRIME HUMAN LEUKOCYTE ANTIGEN CLASS I RESTRICTED CD8 T-CELL RESPONSES AGAINST VIRAL NON-VIRION-INTEGRAL DERIVED EPITOPES Non-Final OA Genovie AB
18312939 LYME RELATED INFECTION INDICATOR Final Rejection DR RP HOLDINGS, LLC
17838114 DURABLE VACCINATION Non-Final OA Gritstone bio, Inc.
17877986 Buffer Free, Acid Stable Low Dose Volume Rotavirus Vaccine Final Rejection Bharat Biotech International Limited
18020659 PROTEINS, POLYNUCLEOTIDES, AND METHODS FOR TREATING CORONAVIRUS INFECTION Non-Final OA WESTPORT BIO, LLC
18004517 ENHANCING IMMUNE RESPONSES THROUGH TARGETED ANTIGEN EXPRESSION Non-Final OA PhageNova Bio, Inc.
18009714 VACCINE COMPOSITIONS, METHODS, AND USES THEREOF Non-Final OA Sichuan Clover Biopharmaceuticals, Inc.
17801110 IgG VARIANTS FOR INDUCTION OF IMMUNE RESPONSE WITHOUT ADJUVANT Final Rejection ARIZONA BOARD OF REGENTSON BEHALF OF ARIZONA STATE UNIVERSITY
17615661 SMALLPOX VACCINE AND STEM CELLS FOR TREATMENT OF DISEASE Final Rejection IMMUNOLUX INTERNATIONAL CORP.
17612560 METHODS AND COMPOSITIONS OF ASTROVIRUS REPLICONS Final Rejection ACCESS TO ADVANCED HEALTH INSTITUTE

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