Prosecution Insights
Last updated: April 19, 2026

Examiner: DUFFY, BRADLEY

Tech Center 1600 • Art Units: 1643

This examiner grants 54% of resolved cases

Performance Statistics

54.3%
Allow Rate
-5.7% vs TC avg
776
Total Applications
+45.4%
Interview Lift
1359
Avg Prosecution Days
Based on 729 resolved cases, 2023–2026

Rejection Statute Breakdown

3.2%
§101 Eligibility
19.7%
§102 Novelty
27.9%
§103 Obviousness
29.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17642870 METHODS AND COMPOSITIONS COMPRISING AN ANTI-CTLA4 MONOCLONAL ANTIBODY WITH REDUCED HOST CELL PROTEINS AND INCREASED POLYSORBATE-80 STABILITY Non-Final OA Merck Sharp & Dohme LLC
16981168 CELLULAR SIGNALING DOMAIN ENGINEERING IN CHIMERIC ANTIGEN RECEPTOR-MODIFIED REGULATORY T CELLS Non-Final OA THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
17775063 ENGINEERING CHARGE PAIR MUTATIONS FOR PAIRING OF HETERO-IgG MOLECULES Final Rejection AMGEN INC.
19277274 COMPOSITIONS AND METHODS RELATED TO POTENT CYTOTOXIC M-CENK CELLS FROM CD3/CD14-DEPLETED APHERESIS PRODUCTS Non-Final OA ImmunityBio, Inc.
17810287 ADA-RESPONSE SPECIFICATION ASSAY Final Rejection Hoffmann-La Roche Inc.
17904219 CHIMERIC ANTIGEN RECEPTORS WITH CD2 ACTIVATION Final Rejection The Board of Trustees of the Leland Stanford Junior University
18280561 PROGNOSTIC PATHWAYS FOR HIGH RISK SEPSIS PATIENTS Non-Final OA KONINKLIJKE PHILIPS N.V.
18260709 COMPOSITIONS AND METHODS RELATED TO IL2 RECEPTOR BINDING Non-Final OA Synthekine, Inc.
18169293 AMHR2-ED CANCER VACCINE FORMULATIONS Non-Final OA The Cleveland Clinic Foundation
17047993 COMPOSITIONS AND METHODS FOR TREATING MELANOMA WITH A CHIMERIC ANTIGEN RECEPTOR Non-Final OA THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA
17916737 ANTITUMOR COMBINATIONS CONTAINING ANTI-CEACAM5 ANTIBODY CONJUGATES, TRIFLURIDINE AND TIPIRACIL Non-Final OA SANOFI
17575762 CHIMERIC ANTIGEN RECEPTOR COMPRISING INTERLEUKIN-15 INTRACELLULAR DOMAIN AND USES THEREOF Final Rejection University of Florida Research Foundation, Incorporated
17915870 Antigen Binding Proteins to Class 5 ETEC Adhesins Non-Final OA United States of America as Represented by the Secretary of the Navy
18164952 Covalent Diabodies and Uses Thereof Non-Final OA MacroGenics, Inc.
17570530 Covalent Diabodies and Uses Thereof Non-Final OA MacroGenics, Inc.
17819745 PD-L1 ANTIBODIES BINDING CANINE PD-L1 Non-Final OA Intervet Inc.
18390978 TREATMENT OF AUTOIMMUNE DISEASES WITH ENGINEERED IMMUNE CELLS Non-Final OA Caribou Biosciences, Inc.
17818256 FGFR2 INHIBITORS ALONE OR IN COMBINATION WITH IMMUNE STIMULATING AGENTS IN CANCER TREATMENT Final Rejection FIVE PRIME THERAPEUTICS, INC.
17995815 MONOCYTE Non-Final OA University of Surrey
17164125 CHIMERIC ANTIGEN RECEPTORS BASED ON SINGLE-DOMAIN ANTIBODIES AND METHODS OF USE THEREOF Final Rejection Legend Biotech USA Inc.
18283579 BINDING AGENTS TARGETING TUMORS AND/OR IMMUNE CELLS Non-Final OA KisoJi Biotechnology Inc.
18277738 VEGFA-BINDING MOLECULES Non-Final OA DotBio Pte. Ltd.
18263753 MULTISPECIFIC ANTIBODIES HAVING SPECIFICITY FOR ROR1 AND CD3 Non-Final OA Numab Therapeutics AG
18255049 CD19-TARGETING HUMANIZED ANTIBODY AND USE THEREOF Non-Final OA BIOHENG THERAPEUTICS LIMITED
18329960 EXOSOME COMPRISING OVEREXPRESSED FC RECEPTOR OR PORTION THEREOF, AND METHOD FOR PREPARING SAME Non-Final OA EXOCOBIO INC
18300286 PHARMACEUTICAL COMPOSITION CONTAINING INSULIN-LIKE GROWTH FACTOR-2 AND USE THEREOF Non-Final OA Shanghai Institutes of Nutrition and Health, Chinese Academy of Sciences
18023060 MODIFIED IMMUNE CELLS FOR FIBROSIS AND INFLAMMATION Non-Final OA Resolution Therapeutics Limited
18079858 COMPOSITION FOR OVERCOMING RESISTANCE TO EGFR-TARGETING AGENT Non-Final OA Pinetree Therapeutics, Inc.
18048860 COMBINATION IMMUNE THERAPY AND CYTOKINE CONTROL THERAPY FOR CANCER TREATMENT Non-Final OA Enlivex Therapeutics RDO Ltd
17914969 EFFICACIOUS DOSE FOR HER2 BISPECIFIC ANTIBODY Final Rejection JIANGSU ALPHAMAB BIOPHARMACEUTICALS CO., LTD.

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