Prosecution Insights
Last updated: May 29, 2026

Examiner: BERKE-SCHLESSEL, DAVID W

Tech Center 1600 • Art Units: 1638 1651

This examiner grants 66% of resolved cases

Performance Statistics

66.5%
Allow Rate
+6.5% vs TC avg
778
Total Applications
+32.1%
Interview Lift
1047
Avg Prosecution Days
Based on 738 resolved cases, 2023–2026

Rejection Statute Breakdown

3.3%
§101 Eligibility
6.5%
§102 Novelty
65.2%
§103 Obviousness
4.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18005178 APTAMER-BASED POINT-OF-CARE ASSAY DEVICES AND METHODS Final Rejection The Regents of the University of California
18557772 HYPERSIALYLATING CELLS Non-Final OA Novartis AG
18103679 METHODS FOR TREATING EXACERBATIONS OF INFLAMMATORY RESPIRATORY DISEASES Non-Final OA Hoffmann-La Roche Inc.
18345803 DEVICE AND METHODS FOR MEASURING PLATELET-FIBRIN CLOT CONTRACTION KINETICS Non-Final OA University of Kentucky Research Foundation
18570470 CHITINOLYTIC ENZYME-BASED PLANT PROTECTION AGENTS Non-Final OA FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
18639238 ISOLATED HUMAN LUNG PROGENITOR CELLS AND USES THEREOF Non-Final OA THE GENERAL HOSPITAL CORPORATION
18469214 CANINE HEPATIC ORGANOIDS Non-Final OA Iowa State University Research Foundation, Inc.
18579230 AGENT FOR IMPROVING INTESTINAL FLORA Non-Final OA KEIO UNIVERSITY
18550496 METHOD FOR PRODUCING BRAIN ORGANOID INCLUDING AGGREGATED TAU PROTEIN Non-Final OA KEIO UNIVERSITY
17918933 METHODS AND COMPOSITIONS FOR IMPROVING SC-BETA CELLS OR ENHANCING THEIR UTILITY Final Rejection WASHINGTON UNIVERSITY
18550546 SYSTEM AND METHOD FOR ONLINE DETECTION OF A POST-TRANSLATIONAL MODIFICATION OF A POLYPEPTIDE Non-Final OA AstraZeneca AB
18277676 GUEST-HOST SUPRAMOLECULAR ASSEMBLY OF INJECTABLE HYDROGEL NANOFIBERS FOR CELL ENCAPSULATION Non-Final OA University of Virginia Patent Foundation
18472931 3D MODELS FOR PREDICTING TREATMENT RESPONSES TO ALTERNATING ELECTRIC FIELDS Non-Final OA NOVOCURE GMBH
18486770 TREATMENT FOR METHAMPHETAMINE CARDIOVASCULAR DISEASE Non-Final OA Board of Supervisors of Louisiana State University and Agricultural and Mechanical College
17768846 Hybrid Antimicrobial Protein Having Strong Bactericidal Effect and Application thereof Non-Final OA Jiangxi Yuansheng Biological Technology Co., Ltd.
18286680 METHOD FOR DETECTING EXOPOLYSACCHARIDE Non-Final OA MEIJI CO., LTD.
18578768 Enzymes and Uses Thereof Non-Final OA Samsara Eco Pty Limited
18394679 MICROBIAL COMPOSITIONS AND METHODS OF USE FOR IMPROVING MILK PRODUCTION Non-Final OA Native Microbials, Inc.
18250808 OSTEOGENIC COMPOSITION AND USE THEREOF Non-Final OA MEGAKARYON CORPORATION
18570546 New Microbial Diamine Oxidase Derived from Yarrowia Lipolytica for the Degradation of Biogenic Amines Non-Final OA UNIVERSITÄT HOHENHEIM
18037339 Cytochrome P450 Mutant Protein and Use Thereof Non-Final OA GsynBioT (Shanghai) Co., Ltd.
18554448 PHOSPHOKETOLASE VARIANTS AND METHODS OF USE Non-Final OA Genomatica, Inc.
18551793 2-IMINOBIOTIN FOR USE IN THE TREATMENT OF STROKE Non-Final OA NEUROPHYXIA B.V.
18276954 Recombinant Human Acid Alpha-Glucosidase and Uses Thereof Final Rejection Amicus Therapeutics, Inc.
18276356 TREATMENT OF MUCOPOLYSACCHARIDOSIS II WITH RECOMBINANT HUMAN IDURONATE-2-SULFATASE (IDS) Final Rejection REGENXBIO RS LLC
17798824 METHOD AND DRUG FOR TREATING VIRAL PNEUMONIA Non-Final OA Talengen International Limited
18004403 METHODS AND COMPOSITIONS FOR PRODUCING VIRAL FUSOSOMES Final Rejection FLAGSHIP PIONEERING INNOVATIONS V, INC.
18025513 Methods for the Determination of Invasive Ability of Brain Tumour Cells and for the Diagnosis and Prognosis of Brain Tumour Final Rejection Institut Gustave Roussy
17910812 INTRACELLULAR SUBSTANCE INTRODUCTION AND EXTRACTION TECHNIQUE VIA COMPOSITE NANOTUBES Final Rejection Hynts Tech Corporation

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