Prosecution Insights
Last updated: April 19, 2026

Examiner: PENNINGTON, KATIE LEIGH

Tech Center 1600 • Art Units: 1633 1634

This examiner grants 26% of resolved cases

Performance Statistics

25.5%
Allow Rate
-34.5% vs TC avg
118
Total Applications
+56.9%
Interview Lift
1408
Avg Prosecution Days
Based on 51 resolved cases, 2023–2026

Rejection Statute Breakdown

4.8%
§101 Eligibility
14.9%
§102 Novelty
34.3%
§103 Obviousness
31.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17270396 CAS9 VARIANTS HAVING NON-CANONICAL PAM SPECIFICITIES AND USES THEREOF Final Rejection President and Fellows of Harvard College
17162356 MODIFIED ADENO-ASSOCIATED VIRAL CAPSID PROTEINS FOR OCULAR GENE THERAPY AND METHODS OF USE THEREOF Non-Final OA GENZYME CORPORATION
18042890 IMPROVED DEPENDOPARVOVIRUS PRODUCTION COMPOSITIONS AND METHODS Non-Final OA DYNO THERAPEUTICS, INC.
17904565 Adeno-Associated Viral (AAV)-Mediated Sgpl1 Gene Therapy For Treatment Of Sphingosine-1-Phosphate Lyase Insufficiency Syndrome (SPLIS) Final Rejection The Regents of the University of California
17278628 ANTIGEN DENSITY SENSING MOLECULAR CIRCUITS AND METHODS OF USE THEREOF Non-Final OA The Regents of the University of California
17820232 CELL-TO-CELL DELIVERY OF RNA CIRCUITS Non-Final OA California Institute of Technology
17638517 TREATMENT OF DIABETIC RETINOPATHY WITH FULLY-HUMAN POST-TRANSLATIONALLY MODIFIED ANTI-VEGF FAB Non-Final OA REGENXBIO INC.
17801815 NOVEL TYPE IV AND TYPE I CRISPR-CAS SYSTEMS AND METHODS OF USE THEREOF Non-Final OA MASSACHUSETTS INSTITUTE OF TECHNOLOGY
17275399 SLOW-CYCLING CELL-RNA BASED NANOPARTICLE VACCINE TO TREAT CANCER Final Rejection University of Florida Research Foundation, Inc.
17437145 Method for Evaluating Quality of Transplant Neural Retina, and Transplant Neural Retina Sheet Non-Final OA Riken
17909187 METHODS OF CONTROLLING BODYWEIGHT BY MODULATING PHOSPHATIDYLINOSITOL 5-PHOSPHATE 4-KINASE BETA ACTIVITY Non-Final OA University of Cincinnati
17772017 Gene Therapy Approaches to Mucolipidosis IV (MLIV) Final Rejection The General Hospital Corporation
17609181 METHOD TO INDUCE HEMATOPOIETIC CHIMERISM Final Rejection The General Hospital Corporation
17435004 Off-Target Single Nucleotide Variants Caused by Single-Base Editing and High-Specificity Off-Target-Free Single-Base Gene Editing Tool Non-Final OA Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences
17836693 Methods for Generating Cardiac Fibroblasts Final Rejection Wisconsin Alumni Research Foundation
17800338 Viral vector particle based on AA V2 for gene therapy Non-Final OA Medizinische Hochschule Hannover
17615453 COMPOSITIONS AND PROCESS FOR INTEGRATING CELLS INTO EPITHELIUM Final Rejection Medizinische Hochschule Hannover
17924539 DISEASE CORRECTION BY DELIVERY OF AAV8 VECTORS EXPRESSING CODON OPTIMIZED NAGLU Non-Final OA University of Florida Research Foundation, Incorporated
17756456 MESENCHYMAL STEM CELLS WITH ENHANCED THERAPEUTIC PROPERTIES Final Rejection UNIVERSITÉ DE MONTPELLIER
17792076 CARTILAGE DAMAGE TREATMENT MATERIAL UTILIZING BONE MARROW FLUID Final Rejection Mochida Pharmaceutical Co., Ltd.
17514828 ENGINEERED CHIMERIC FUSION PROTEIN COMPOSITIONS AND METHODS OF USE THEREOF Final Rejection CREATE Medicines, Inc.
17111769 Modified Guide RNAs for Gene Editing Final Rejection Intellia Therapeutics, Inc.
17778482 DIRECTED CHANGES IN ORGANISM POPULATIONS Non-Final OA Trustees of Tufts College
17090706 N-Glycosylation Final Rejection Danmarks Tekniske Universitet
17634794 HOLLOW THREE-DIMENSIONAL UNIT MADE FROM RETINAL TISSUE AND USE THEREOF IN THE TREATMENT OF RETINOPATHIES Final Rejection TREEFROG THERAPEUTICS
17630885 LENTIVIRAL TRANSDUCTION METHODS Final Rejection Adaptimmune Limited
17265484 METHODS AND COMPOSITIONS FOR STIMULATION OF CHIMERIC ANTIGEN RECEPTOR T CELLS WITH HAPTEN LABELLED CELLS Final Rejection Seattle Children's Hospital (dba Seattle Children's Research Institute)
18265248 ONCOLYTIC HERPES SIMPLEX TYPE 1 VIRUSES FOR TREATMENT OF BRAIN TUMORS Non-Final OA IMMVIRA CO., LIMITED
18030407 LIVE BIOTHERAPEUTICS SECRETING SYNTHETIC BACTERIOPHAGES IN THE TREATMENT OF CANCER Non-Final OA TATUM BIOSCIENCE INC.
18014112 HUMAN LONG-TERM HEMATOPOIETIC STEM CELL MARKER Non-Final OA NEXTGEM INC.

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