Prosecution Insights
Last updated: May 29, 2026

Examiner: XU, XIAOYUN

Tech Center 1700 • Art Units: 1777 1797

This examiner grants 60% of resolved cases

Performance Statistics

59.6%
Allow Rate
-5.4% vs TC avg
1,211
Total Applications
+32.3%
Interview Lift
1182
Avg Prosecution Days
Based on 1156 resolved cases, 2023–2026

Rejection Statute Breakdown

0.2%
§101 Eligibility
4.1%
§102 Novelty
90.7%
§103 Obviousness
4.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18156846 LIGHT ENERGY FLUORESCENCE EXCITATION Final Rejection Illumina, Inc.
19013836 METHODS FOR DETECTING AAV Final Rejection Genzyme Corporation
18204801 NATIVE MICROFLUIDIC CE-MS ANALYSIS OF ANTIBODY CHARGE HETEROGENEITY Non-Final OA Regeneron Pharmaceuticals, Inc.
17870368 NATIVE MICROFLUIDIC CE-MS ANALYSIS OF ANTIBODY CHARGE HETEROGENEITY Non-Final OA Regeneron Pharmaceuticals, Inc.
17684674 SYSTEMS AND METHODS FOR QUANTIFYING AND MODIFYING PROTEIN VISCOSITY Non-Final OA Regeneron Pharmaceuticals, Inc.
17531665 Use Of Nuclear Magnetic Resonance For Gas Wettability And Supercritical Fluid Wettability Determination Final Rejection Halliburton Energy Services, Inc.
18283099 METHOD FOR SENSING METHYL SALICYLATE, METHYL SALICYLATE SENSOR, AND METHOD FOR DETECTING PATHOGEN INFECTION OF PLANTS Non-Final OA NEC Corporation
18245004 METHODS OF DETECTING ISOASPARTIC ACID Final Rejection AMGEN INC.
18002457 PROCESS FOR DIRECT READOUT OF IMMUNOGLOBULINS Final Rejection Northwestern University
17998904 QUANTUM OPTICS PROFILES FOR SCREENING, DIAGNOSIS, AND PROGNOSIS OF DISEASES Final Rejection King Saud University
18325942 SPIN TORQUE OSCILLATOR (STO) SENSORS USED IN NUCLEIC ACID SEQUENCING ARRAYS AND DETECTION SCHEMES FOR NUCLEIC ACID SEQUENCING Final Rejection Western Digital Technologies, Inc.
18547687 METHODS FOR POLYPEPTIDE PROCESSING AND ANALYSIS Non-Final OA BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
18314944 METHOD FOR OBTAINING INFORMATION ON VON WILLEBRAND FACTOR, MEASUREMENT SAMPLE PREPARATION METHOD, AND REAGENT KIT Final Rejection SYSMEX CORPORATION
18209858 METHODS AND SYSTEMS OF PROTEOME ANALYSIS AND IMAGING Non-Final OA Battelle Memorial Institute
18364857 SYSTEMS AND METHODS FOR COLLECTING FLUIDS Non-Final OA Sunflower Therapeutics, PBC
18258750 OPTOCHEMICAL SENSOR AND METHOD FOR MEASURING LUMINESCING ANALYTES IN A MEASUREMENT MEDIUM Final Rejection Endress+Hauser Conducta GmbH+Co. KG
17909398 A method for preparing a gaseous isotope reference, a method for determining an isotope ratio in a sample, and use of graphite for preparing a gaseous carbon and/or oxygen isotope reference Final Rejection Teknologian tutkimuskeskus VTT Oy
18253308 DETECTION METHOD Non-Final OA THE UNIVERSITY OF QUEENSLAND
18678276 Novel Photocleavable Mass-Tags for Multiplexed Mass Spectrometric Imaging of Tissues Using Biomolecular Probes Non-Final OA AmberGen, Inc.
18361439 METHODS AND COMPOSITIONS FOR DETECTING COGNITIVE DISORDER Non-Final OA Sanford Burnham Prebys Medical Discovery Institute
18312442 DERIVATIZATION OF AT LEAST ONE ANALYTE OF INTEREST FOR MASS SPEC MEASUREMENTS IN PATIENT SAMPLES Non-Final OA Roche Diagnostics Operations, Inc.
17477882 Monitoring mycotoxins and its metabolites in the blood of pigs or broiler chickens Non-Final OA Universiteit Gent
18053093 VIRUS PEPTIDE AND PROTEIN VARIANT SELECTION WORKFLOW Final Rejection Waters Technologies Corporation
17641907 METHODS OF MEASURING COPPER CONCENTRATION IN BIOLOGICAL SAMPLES Non-Final OA Alexion Pharmaceuticals, Inc.
18180789 IDENTIFICATION AND USE OF GLYCOPEPTIDES AS BIOMARKERS FOR DIAGNOSIS AND TREATMENT MONITORING Final Rejection Venn Biosciences Corporation
17783861 Method for Monitoring of Deep Remissions in Multiple Myeloma and Other Plasma Cell Dyscrasias Non-Final OA Stichting Radboud Universitair Medisch Centrum
18255303 METHOD FOR DETECTING CONTENT OF ACTIVE INGREDIENTS OF COMPOUND SOPHORAE FLAVESCENTIS RADIX INJECTION AND FINGERPRINT SPECTRUM THEREOF Non-Final OA BEIJING ZHENDONG GUANGMING PHARMACEUTICAL RESEARCH INSTITUTE CO., LTD.
18311347 APPARATUS, SYSTEMS AND METHODS FOR PREPARING AND SHIPPING SAMPLES Non-Final OA Tasso, Inc.
18040411 SOLID MIXTURE COMPRISING STANDARD PROTEIN Final Rejection ProteomEdge AB
17924113 SAMPLE PREPARATION FOR MASS SPECTROMETRY Final Rejection PREOMICS GMBH

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