Prosecution Insights
Last updated: April 19, 2026

Examiner: VAN DRUFF, SYDNEY

Tech Center 1600 • Art Units: 1643

This examiner grants 57% of resolved cases

Performance Statistics

57.4%
Allow Rate
-2.6% vs TC avg
171
Total Applications
+30.6%
Interview Lift
1187
Avg Prosecution Days
Based on 136 resolved cases, 2023–2026

Rejection Statute Breakdown

2.2%
§101 Eligibility
13.9%
§102 Novelty
36.2%
§103 Obviousness
25.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17876413 Dendritic Cells Pulsed With Tumor Membrane Vesicles And Uses In Treating Cancer Non-Final OA Emory University
17934996 PROTEIN NANOPARTICLES AND COMBINATION THERAPY FOR CANCER IMMUNOTHERAPY Final Rejection THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
18042958 Nucleic Acid-Derivatized Therapeutics Non-Final OA The University of Chicago
18310913 PROTAC ANTIBODY CONJUGATES AND METHODS OF USE Final Rejection Genentech, Inc.
18156744 ANTIBODY-CONJUGATED CHEMICAL INDUCERS OF DEGRADATION OF BRM AND METHODS THEREOF Non-Final OA Genentech, Inc.
17612280 ANTIBODY DRUG CONJUGATES HAVING LINKERS COMPRISING HYDROPHILIC GROUPS Non-Final OA Novartis AG
17600903 WATER SOLUBLE ADJUVANT AND COMPOSITION CONTAINING SAME Final Rejection Sumitomo Pharma Co., Ltd.
17054312 PROXIMITY INDUCED SITE-SPECIFIC ANTIBODY CONJUGATION Non-Final OA William Marsh Rice University
17819185 COMBINATION THERAPY Final Rejection Medimmune Limited
18367446 METHOD OF TREATING CANCER COMPRISING ADMINISTRATION OF ANTI-HER2 ANTIBODY-DRUG CONJUGATE Non-Final OA DAIICHI SANKYO COMPANY, LIMITED
17262590 EFFECTIVE METHOD FOR MANUFACTURING ANTIBODY-DRUG CONJUGATE Non-Final OA DAIICHI SANKYO COMPANY, LIMITED
17058838 TREATMENT OF HER2-MUTATED CANCER BY ADMINISTERING ANTI-HER2 ANTIBODY-DRUG CONJUGATE Final Rejection DAIICHI SANKYO COMPANY, LIMITED
17290797 METHODS AND COMPOSITIONS FOR TREATING HEPATOCELLULAR CARCINOMA USING ANTISENSE Non-Final OA Thomas Jefferson University
18651929 USE OF NOX INHIBITORS FOR TREATMENT OF CANCER Non-Final OA UNIVERSITY OF SOUTHAMPTON
18694931 ANTI-CANCER VACCINE COMPOSITION COMPRISING PEPTIDES DERIVED FROM TUMOR-ASSOCIATED ANTIGEN, AND ADJUVANT CONSISTING OF LIPOPEPTIDE AND IMMUNOACTIVE SUBSTANCE, AND USE THEREOF Non-Final OA CHA VACCINE RESEARCH INSTITUTE CO., LTD
18227830 LINKERS, DRUG LINKERS AND CONJUGATES THEREOF AND METHODS OF USING THE SAME Non-Final OA GENMAB A/S
18260691 ANTIBODY SPECIFICALLY BINDING WITH PD-L1 AND ANTIGEN-BINDING FRAGMENT OF ANTIBODY Non-Final OA BEIJING HANMI PHARMACEUTICAL CO., LTD.
18345511 Combination Therapy for Treating Cancer with an Antibody and Intravenous Administration of a Recombinant MVA Non-Final OA Bavarian Nordic A/S
18269996 HUMAN ANTI-TAU ANTIBODIES Non-Final OA Neurimmune AG
18269942 IMMUNE- STIMULATING COMPOUNDS LINKED TO GLYCOGEN-BASED POLYSACCHARIDE NANOPARTICLES FOR SENSITIZING CANCER CELLS TO A CHEMOTHERAPEUTIC DRUG Non-Final OA GLYSANTIS BIOTECH INC.
17927501 Antigen Presenting Polypeptide Complexes and Methods of Use Thereof Non-Final OA Cue Biopharma, Inc.
18156748 A CONJUGATE OF A TUBULYSIN ANALOG WITH BRANCHED LINKERS Final Rejection Hangzhou DAC Biotech Co., Ltd.
17423843 FORMULATIONS Non-Final OA IMMUNOCORE LIMITED
18049711 ANTIBODY DRUG CONJUGATE FOR ANTI-INFLAMMATORY APPLICATIONS Final Rejection Ambrx, Inc.
17263258 CANCER VACCINES FOR UTERINE CANCER Non-Final OA CureVac Netherlands B.V.
17262999 ARID1A, CDKN2A, KMT2B, KMT2D, TP53 and PTEN VACCINES FOR CANCER Final Rejection CureVac Netherlands B.V.
15734445 TUMOR MICROENVIRONMENT-ACTIVATED DRUG-BINDER CONJUGATES, AND USES RELATED THERETO Final Rejection Avacta Life Sciences, Limited

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