Prosecution Insights
Last updated: May 29, 2026

Examiner: VAN DRUFF, SYDNEY

Tech Center 1600 • Art Units: 1643

This examiner grants 57% of resolved cases

Performance Statistics

57.2%
Allow Rate
-2.8% vs TC avg
174
Total Applications
+28.5%
Interview Lift
1142
Avg Prosecution Days
Based on 138 resolved cases, 2023–2026

Rejection Statute Breakdown

0.6%
§101 Eligibility
6.6%
§102 Novelty
46.3%
§103 Obviousness
7.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17934996 PROTEIN NANOPARTICLES AND COMBINATION THERAPY FOR CANCER IMMUNOTHERAPY Final Rejection THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
17775198 IDENTIFICATION OF SPLICING-DERIVED ANTIGENS FOR TREATING CANCER Non-Final OA THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
18156744 ANTIBODY-CONJUGATED CHEMICAL INDUCERS OF DEGRADATION OF BRM AND METHODS THEREOF Non-Final OA Genentech, Inc.
17920461 DUOCARMYCIN DERIVATIVE AND USE THEREOF Non-Final OA TOHOKU UNIVERSITY
17054312 PROXIMITY INDUCED SITE-SPECIFIC ANTIBODY CONJUGATION Non-Final OA William Marsh Rice University
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
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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