Prosecution Insights
Last updated: April 19, 2026

Examiner: SPANGLER, JOSEPH RANKIN

Tech Center 1600 • Art Units: 1656

This examiner grants 39% of resolved cases

Performance Statistics

38.8%
Allow Rate
-21.2% vs TC avg
100
Total Applications
+61.2%
Interview Lift
1319
Avg Prosecution Days
Based on 49 resolved cases, 2023–2026

Rejection Statute Breakdown

11.9%
§101 Eligibility
15.4%
§102 Novelty
29.4%
§103 Obviousness
26.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18032105 WW-DOMAIN-ACTIVATED EXTRACELLULAR VESICLES Non-Final OA President and Fellows of Harvard College
17438088 AMYLASES AND METHODS FOR MAKING AND USING THEM Final Rejection BASF SE
17268130 PROTEIN FRAGMENTATION CONTROL STRATEGY BY RE-OXIDATION IN DOWNSTREAM CHROMATOGRAPHY Non-Final OA BRISTOL-MYERS SQUIBB COMPANY
17434832 Precise Gene Activation Via Novel Designed Proteins Mediating Epigenetic Remodeling Final Rejection UNIVERSITY OF WASHINGTON
18985413 Culture conditions for high production of antibiotic compound aureothin from Streptomyces thioluteus Non-Final OA KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
18288401 METHOD OF DETECTING BACTERIAL/FUNGAL CONTAMINATION Non-Final OA National University of Singapore
17609841 GENETICALLY MODIFIED MICROORGANISM FOR PRODUCING 3-HYDROXYHEXANEDIOIC ACID, (E)-HEX-2-ENEDIOIC ACID AND/OR HEXANEDIOIC ACID, AND PRODUCTION METHOD FOR SAID CHEMICALS Non-Final OA TORAY INDUSTRIES, INC.
17268596 METHOD FOR CONJUGATION OF BIOMOLECULES AND NEW USE OF GOLD DONOR FOR BIOMOLECULAR COMPLEX FORMATION Non-Final OA UNIWERSYTET JAGIELLONSKI
17433767 PROTEIN HYDROLYSATES WITH INCREASED YIELD OF N-TERMINAL AMINO ACID Non-Final OA INTERNATIONAL N&H DENMARK APS
17904189 PRODUCTION OF GLYCOSYLATED PRODUCT IN HOST CELLS Final Rejection INBIOSE N.V.
18674727 LEUCONOSTOC HOLZAPFELII STRAIN FOR PREVENTING DEPILATION IMPROVING HAIR GROWTH OR IMPROVING SEXUAL DISFUNTION AND COMPOSITION COMPRISING THE SAME Non-Final OA COENBIO CO., LTD.
17410482 FEED INGREDIENT COMPRISING BUTYRATE AND A SELECTED FERMENTATION PRODUCT Final Rejection SUPERBREWED FOOD, INC.
17958310 PROBIOTIC AND FOLIC ACID COMPOSITIONS AND METHODS OF USING Non-Final OA Bonafide Health, LLC
18287386 REAGENT COMPOSITION AND KIT Non-Final OA DENKA COMPANY LIMITED
17634909 TEXTURING L. LACTIS WITH UNIQUE EPS GENE CLUSTERS Non-Final OA Chr. Hansen A/S
16769964 SPRAY-DRIED SIALYLLACTOSE Non-Final OA Chr. Hansen A/S
17280125 Protein Composition Production Method Non-Final OA Spiber Inc.
18451748 METHODS AND SYSTEMS FOR DETERMINING SUITABILITY OF COMPOSITIONS FOR INHIBITING GROWTH OF POLYMICROBIAL SAMPLES Non-Final OA CAP DIAGNOSTICS, LLC, DBA PATHNOSTICS
17830227 METHODS AND SYSTEMS FOR PREPARING THERAPEUTIC SOLUTIONS FOR POLYMICROBIAL INFECTIONS Final Rejection CAP Diagnostics, LLC dba Pathnostics
17440670 NEW USES OF A MUTATED LACTONASE, AND COMPOSITIONS Non-Final OA AIX-MARSEILLE UNIVERSITE
17415344 ASPARAGINASE-INDUCED GLUTAMINE DEPLETION COMBINED WITH BCL-2 INHIBITION FOR TREATMENT OF HEMATOLOGIC AND SOLID CANCERS Non-Final OA UNIVERSITY OF MARYLAND, BALTIMORE
17418505 BIOSYNTHETIC METHODS AND SYSTEMS FOR PRODUCING MONOSACCHARIDES Final Rejection Cemvita Factory, Inc.
18252354 PREPARATION OF HIGHLY CONCENTRATED ALLERGENIC INTERMEDIATE Non-Final OA Jubilant HollisterStier LLC
17431135 ENZYMES WITH RUVC DOMAINS Final Rejection Metagenomi, Inc.
17429374 Methods for Diagnosing Alzheimer's Disease Based on Cell Growth Rate, Size and Protein Amount Final Rejection NeuroDiagnostics LLC
17579559 PARTICLE SEPARATOR SYSTEM, MATERIALS, AND METHODS OF USE Non-Final OA LEVITASBIO, INC.
17828811 METHOD FOR COUPLING ANTIBODY TO SURFACE OF CELL AND METHOD FOR APPLYING CELL COUPLED WITH THE ANTIBODY Final Rejection Xiamen Nuokangde Biological Technology Co., Ltd.
17730850 PROBIOTIC COMPOSITIONS AND METHODS OF USE THEREOF Final Rejection Schism Bioworks LLC
17627488 IMMOBILIZED ENZYME COMPOSITIONS FOR THE PRODUCTION OF HEXOSES Final Rejection BONUMOSE, INC.
17541405 CLASS 2 CRISPR-CAS RNA-GUIDED ENDONUCLEASES Final Rejection SCIENCE SOLUTIONS LLC

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