Prosecution Insights
Last updated: April 19, 2026

Examiner: PUTTLITZ, KARL J

Tech Center 1600 • Art Units: 1621 1642 1646 1671

This examiner grants 69% of resolved cases

Performance Statistics

69.1%
Allow Rate
+9.1% vs TC avg
1467
Total Applications
+18.2%
Interview Lift
992
Avg Prosecution Days
Based on 1409 resolved cases, 2023–2026

Rejection Statute Breakdown

0.7%
§101 Eligibility
11.3%
§102 Novelty
37.5%
§103 Obviousness
26.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19097573 ANTIBODY-OLIGONUCLEOTIDE CONJUGATE COMPOSITIONS AND METHODS OF INDUCING DMD EXON 50 SKIPPING Final Rejection Avidity Biosciences, Inc.
18237210 SITE-SPECIFIC QUANTITATION OF DRUG CONJUGATIONS Non-Final OA Regeneron Pharmaceuticals, Inc.
17611758 Metabolite Delivery for Modulating Metabolic Pathways of Cells Non-Final OA Arizona Board of Regents on Behalf of Arizona State University
18552478 ENHANCING T CELL FUNCTION THROUGH THE USE OF PROXIMAL SIGNALING MOLECULES Non-Final OA The Board of Trustees of the Leland Stanford Junior University
17999528 ENGINEERED INTERLEUKIN-10 POLYPEPTIDES AND USES THEREOF Non-Final OA The Board of Trustees of the Leland Stanford Junior University
18342898 MULTIFUNCTIONAL IMMUNE CELL THERAPIES Final Rejection Arcellx, Inc.
17818526 CYCLOPHOSPHAMIDE ANALOGS FOR USE AS IMMUNOGENS AND ASSAY CONJUGATES FOR AN IMMUNOASSAY OF CYCLOPHOSPHAMIDE AND IFOSFAMIDE Non-Final OA Becton, Dickinson and Company
16885519 DIOL COMPOSITION AND POLYESTER Non-Final OA Toray Industries, Inc.
17887341 SCALABLE AND FACILE CELL-MEMBRANE-COATING TECHNOLOGY FOR BOTH POSITIVELY AND NEGATIVELY CHARGED PARTICLES Final Rejection THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
18044274 CpG IMMUNOCONJUGATES FOR CANCER THERAPY Non-Final OA University of Southern California
17627613 METHOD OF TREATING NEOPLASTIC DISEASES WITH A CDC42-SPECIFIC INHIBITOR Non-Final OA Children's Hospital Medical Center
17918947 OLIGONUCLEOTIDE CONJUGATES AND PREPARATION AND APPLICATIONS THEREOF Non-Final OA ACADEMIA SINICA
17093486 RIBONUCLEOPROTEIN TRANSFECTION AGENTS Non-Final OA LIFE TECHNOLOGIES CORPORATION
18272050 ANTI-DLL3 ANTIBODY-DRUG CONJUGATE Non-Final OA DAIICHI SANKYO COMPANY, LIMITED
17759139 VACCINATION AGAINST ANTIGENS INDUCED IN PATHOGEN-INFECTED CELLS Non-Final OA University of Miami
18447808 LUNG CANCER COMBINATION THERAPY WITH IL-2 CONJUGATES AND AN ANTI-PD-1 ANTIBODY OR ANTIGEN-BINDING FRAGMENT THEREOF Non-Final OA MSD INTERNATIONAL GMBH
18549837 ANTIBODIES AGAINST INTEGRIN HETERODIMERS AND USES THEREOF Non-Final OA The Governing Council of the University of Toronto
18331966 NEUTRALIZATION OF INHIBITORY PATHWAYS IN LYMPHOCYTES Final Rejection INNATE PHARMA
18035070 IMMUNE CHECKPOINT INHIBITOR Non-Final OA Randox Laboratories Ltd.
17793005 ANTI-TROP-2 ANTIBODY-EXATECAN ANALOG CONJUGATE AND MEDICAL USE THEREOF Non-Final OA SHANGHAI HENGRUI PHARMACEUTICAL CO., LTD.
17957302 AXL-SPECIFIC ANTIBODY-DRUG CONJUGATES FOR CANCER TREATMENT Non-Final OA GENMAB A/S
17596239 ANTI-B7-H4 ANTIBODY-DRUG CONJUGATE AND MEDICINAL USE THEREOF Final Rejection Jiangsu Hansoh Pharmaceutical Group Co., Ltd.
18036142 NEW TYPE II COLLAGEN BINDING PROTEINS Non-Final OA Navigo Proteins GmbH
18286895 Applications of GHR-106 Monoclonal Antibody as a GnRH Antagonist Non-Final OA VANCOUVER BIOTECH LTD.
18375175 PREPARATION AND PURIFICATION METHOD OF ANTIBODY DRUG CONJUGATE INTERMEDIATE Non-Final OA REMEGEN CO., LTD.
18282696 ENGINEERED IMMUNE CELLS AND USES THEREOF Non-Final OA Nanjing Legend Biotech Co., Ltd.
18258343 Therapeutic RNA for Treating Cancer Non-Final OA BioNTech SE
18548850 USE OF A PERIOSTIN ANTIBODY FOR TREATING INFLAMMATION, FIBROSIS AND LUNG DISEASES Non-Final OA Université d'Orléans
18252818 PHARMACEUTICAL FORMULATION Non-Final OA AstraZeneca UK Limited
18254941 ANTI-SIRPalpha ANTIBODY OR ANTIGEN-BINDING FRAGMENT THEREOF, AND USE THEREOF Non-Final OA QURE BIOTECHNOLOGY (SHANGHAI) CO., LTD.

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