Prosecution Insights
Last updated: April 19, 2026

Examiner: XIAO, YAN

Tech Center 1600 • Art Units: 1642

This examiner grants 68% of resolved cases

Performance Statistics

67.8%
Allow Rate
+7.8% vs TC avg
778
Total Applications
+51.7%
Interview Lift
1120
Avg Prosecution Days
Based on 749 resolved cases, 2023–2026

Rejection Statute Breakdown

4.4%
§101 Eligibility
19.4%
§102 Novelty
29.5%
§103 Obviousness
23.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18318912 ALDH1 ANTIGEN-PULSED DENDRITIC CELLS Final Rejection The Regents of the University of Michigan
18025883 A Scoring Method for an Anti-B7H4 Antibody-Drug Conjugate Therapy Non-Final OA Medimmune Limited
17638725 TARGETED DELIVERY OF TUMOR MATRIX MODIFYING ENZYMES Final Rejection The Research Foundation for The State University of New York
18325912 METHODS FOR TREATING MISMATCH REPAIR DEFICIENT LOCALLY ADVANCED RECTAL CANCER USING DOSTARLIMAB Non-Final OA Sloan-Kettering Institute for Cancer Research
18906489 Compositions and Methods for the Delivery of Therapeutic Biologics for Treatment of Disease Non-Final OA Elektrofi, Inc.
18552504 ANTI-TAU ANTIBODIES AND USES THEREOF Non-Final OA Janssen Biotech, Inc.
17995273 PHARMACEUTICAL COMPOSITION FOR TREATING CANCER, CONTAINING LIPID-PHOTOTHERMAL NANOPARTICLE HAVING ANTIBODY BOUND TO SURFACE Non-Final OA SEOUL NATIONAL UNIVERSITY R & DB FOUNDATION
18316672 EPHA3 AND MULTI-VALENT TARGETING OF TUMORS Non-Final OA Wake Forest University Health Sciences
17997963 DNA ANTIBODY CONSTRUCTS FOR USE AGAINST HEPATITIS B VIRUS Non-Final OA The Wistar Institute of Anatomy and Biology
18026799 COMBINATION THERAPIES Non-Final OA Mirati Therapeutics, Inc.
18043497 COMPOSITIONS AND METHODS FOR TARGETING PLASMODIUM MALE GAMETE PROTEIN TO BLOCK MALARIA PARASITE TRANSMISSION Non-Final OA SEATTLE CHILDREN'S HOSPITAL D/B/A SEATTLE CHILDREN'S RESEARCH INSTITUTE
17926206 METHODS OF TREATING HER2 POSITIVE CANCER WITH TUCATINIB IN COMBINATION WITH TRASTUZUMAB AND AN OXALIPLATIN-BASED CHEMOTHERAPY Non-Final OA Seagen Inc.
18122839 COMBINATIONS OF AN ANTI-INTERLEUKIN-6 RECEPTOR ANTIBODY, A PLATINUM-BASED ANTINEOPLASTIC DRUG, AND A TAXANE Non-Final OA King Faisal Specialist Hospital & Research Centre
18251523 Combination Treatment of Cancer Non-Final OA GlaxoSmithKline Intellectual Property (NO. 4) LTD.
18023332 DEVELOPMENT OF DRUG THERAPEUTIC AGENT CONTAINING ADAPTOR AND USE THEREOF Non-Final OA BEIJING TIANNUOJIANCHENG PHARMA TECH CO., LTD.
18007248 METHODS AND COMPOSITIONS FOR PREVENTING AND TREATING A CANCER Non-Final OA Assistance Publique-Hôpitaux de Paris
18016316 CANCER ANTIGEN FOR EARLY CANCER DETECTION Non-Final OA UCT RESEARCH AND DEVELOPMENT INC.
18064180 Peptides Non-Final OA Immunocore Limited
17927728 TREATMENT OF NON-ALCOHOLIC FATTY LIVER DISEASE Non-Final OA PEMI31 THERAPEUTICS INC.
17789746 Composition and Use of Engineered Monoclonal Antibodies Refractory to Tumor Immuno-Suppressive Factors Non-Final OA Navrogen, Inc.
17775981 COMPOSITIONS AND METHODS FOR IMMUNOTHERAPY Final Rejection SURFACE ONCOLOGY, LLC
17453808 IMMUNOMODULATORY & ONCOLYTIC MINICELLS AND METHODS OF USE Final Rejection Vaxiion Therapeutics, LLC

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