Prosecution Insights
Last updated: May 29, 2026

Examiner: CHEN, STACY BROWN

Tech Center 1600 • Art Units: 1648 1671 1672

This examiner grants 66% of resolved cases

Performance Statistics

65.9%
Allow Rate
+5.9% vs TC avg
964
Total Applications
+40.1%
Interview Lift
1128
Avg Prosecution Days
Based on 919 resolved cases, 2023–2026

Rejection Statute Breakdown

1.7%
§101 Eligibility
7.8%
§102 Novelty
43.6%
§103 Obviousness
19.2%
§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
17050115 INDICATOR BACTERIOPHAGE FOR SELECTING AND MONITORING FOR EFFICACY OF THERAPEUTICS AND METHODS FOR USING SAME Non-Final OA LABORATORY CORPORATION OF AMERICA HOLDINGS
17968115 VIRUS-LIKE PARTICLE WITH EFFICIENT EPITOPE DISPLAY Non-Final OA University of Copenhagen
18347698 SELF-AMPLIFYING RNA ENCODING AN INFLUENZA VIRUS ANTIGEN Non-Final OA PFIZER INC.
18034720 GENE SHUFFLED LYSSAVIRUS VACCINE Non-Final OA Thomas Jefferson University
18318842 DELIVERY OF BIOMOLECULES TO PBMCs TO MODIFY AN IMMUNE RESPONSE Non-Final OA STEMCELL TECHNOLOGIES CANADA INC.
18659639 EPSTEIN-BARR VIRUS VACCINES Final Rejection The USA, as represented by the Secretary, Dept, of Health and Human Services
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.
17841267 COMBINATIONS OF FLAVIVIRUS PROTEINS, PEPTIDE SEQUENCES, EPITOPES, AND METHODS AND USES THEREOF Non-Final OA LA JOLLA INSTITUTE FOR IMMUNOLOGY
18359526 DNA-STABILISED METAL CLUSTER BASED NUCLEIC ACID-SENSOR WITH DISTINCT EMISSION COLOUR AND INTENSITY CHANGE UPON TARGET RECOGNITION Non-Final OA Universiteit Leiden
17621125 ATTENUATED DENGUE VIRUSES Non-Final OA CODAGENIX INC.
18261811 INFORMATION PROVISION METHOD FOR EXAMINING ACTIVE IMMUNITY BY USING PRODUCTION OF NEUTRALIZING ANTIBODIES AND INTERFERON GAMMA Non-Final OA BODITECH MED INC.
18276905 INFLUENZA VACCINE COMPOSITIONS AND METHODS OF USING SAME Non-Final OA Children's Hospital Medical Center
17907424 DEFECTIVE INTERFERING VIRAL GENOMES Non-Final OA INSTITUT PASTEUR
17912563 TECHNOLOGIES FOR PREVENTING OR TREATING INFECTIONS Final Rejection Biohaven Therapeutics Ltd.
18266486 USE OF VACCINE COMPOSITIONS BASED ON SARS-COV-2 RECEPTOR BINDING DOMAIN IN DELIVERING PROTECTIVE IMMUNITY 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.
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.
17615661 SMALLPOX VACCINE AND STEM CELLS FOR TREATMENT OF DISEASE Final Rejection IMMUNOLUX INTERNATIONAL CORP.

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