Prosecution Insights
Last updated: April 19, 2026

Examiner: XU, XIAOYUN

Tech Center 1700 • Art Units: 1777 1797

This examiner grants 60% of resolved cases

Performance Statistics

59.5%
Allow Rate
-5.5% vs TC avg
1209
Total Applications
+32.5%
Interview Lift
1159
Avg Prosecution Days
Based on 1154 resolved cases, 2023–2026

Rejection Statute Breakdown

0.7%
§101 Eligibility
17.8%
§102 Novelty
61.1%
§103 Obviousness
13.3%
§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
17531665 Use Of Nuclear Magnetic Resonance For Gas Wettability And Supercritical Fluid Wettability Determination Non-Final OA Halliburton Energy Services, Inc.
18245004 METHODS OF DETECTING ISOASPARTIC ACID Final Rejection AMGEN INC.
18283099 METHOD FOR SENSING METHYL SALICYLATE, METHYL SALICYLATE SENSOR, AND METHOD FOR DETECTING PATHOGEN INFECTION OF PLANTS Non-Final OA NEC Corporation
18002457 PROCESS FOR DIRECT READOUT OF IMMUNOGLOBULINS Final Rejection Northwestern University
18204801 NATIVE MICROFLUIDIC CE-MS ANALYSIS OF ANTIBODY CHARGE HETEROGENEITY Non-Final OA Regeneron Pharmaceuticals, Inc.
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
18105942 METHOD OF QUANTIFICATION OF FREE SULFUR Non-Final OA SUMITOMO RUBBER INDUSTRIES, LTD.
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
16644661 METHODS AND SYSTEMS TO PERFORM GENETICALLY VARIANT PROTEIN ANALYSIS, AND RELATED MARKER GENETIC PROTEIN VARIATIONS AND DATABASES Non-Final OA LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
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
18008983 EYE DISEASE EVALUATION METHOD Non-Final OA KYOTO PREFECTURAL PUBLIC UNIVERSITY CORPORATION
18312442 DERIVATIZATION OF AT LEAST ONE ANALYTE OF INTEREST FOR MASS SPEC MEASUREMENTS IN PATIENT SAMPLES Non-Final OA Roche Diagnostics Operations, Inc.
18253308 DETECTION METHOD Non-Final OA THE UNIVERSITY OF QUEENSLAND
18361439 METHODS AND COMPOSITIONS FOR DETECTING COGNITIVE DISORDER Non-Final OA Sanford Burnham Prebys Medical Discovery Institute
18018460 METHOD FOR MEASURING PHARMACOKINETICS OF AGENT LABELED WITH NON-RADIOACTIVE SUBSTANCE Non-Final OA Chugai Seiyaku Kabushiki Kaisha
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
18529686 FUNCTIONALIZED CALIBRANTS FOR SPECTROMETRY AND CHROMATOGRAPHY Non-Final OA POLYMER FACTORY SWEDEN AB
18549236 METHOD FOR ASSESSING EFFICACY OF TREATMENT PROTOCOLS FOR NEURODEGENERATIVE DISEASES Non-Final OA EM SCIENTIFIC LIMITED
17783861 Method for Monitoring of Deep Remissions in Multiple Myeloma and Other Plasma Cell Dyscrasias Non-Final OA Stichting Radboud Universitair Medisch Centrum
18255302 METHOD FOR DETECTING MONOSACCHARIDE AND OLIGOSACCHARIDE CONTENT AND FINGERPRINT SPECTURM OF COMPOUND SOPHORA FLAVESCENS INJECTION Final Rejection BEIJING ZHENDONG GUANGMING PHARMACEUTICAL RESEARCH INSTITUTE CO., LTD.
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.
18023935 ACYLCARNITINE ANALYSIS METHOD AND ACYLCARNITINE ANALYSIS DEVICE Non-Final OA NATIONAL UNIVERSITY CORPORATION SHIMANE UNIVERSITY

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