IPC Classification

All sections
G - Physics
G01N - Investigating or analysing materials by determining their chemical or physical properties
G01N 33/50 - Chemical analysis of biological material, e.g. blood, urineTesting involving biospecific ligand binding methodsImmunological testing

Patent holdings for IPC class G01N 33/50

1914	1982	1977	1856	1718	1689	1482	1480	1351	424
2017	2018	2019	2020	2021	2022	2023	2024	2025	2026

Owner	All patents	This class
The Regents of the University of California	20574	414
President and Fellows of Harvard College	6045	229
The Board of Trustees of the Leland Stanford Junior University	6600	219
Massachusetts Institute of Technology	10208	201
The Johns Hopkins University	5825	181
Dana-Farber Cancer Institute, Inc.	2648	173
Centre National de La Recherche Scientifique	10886	154
The General Hospital Corporation	4827	150
Inserm (institut National de La Sante et de La Recherche Medicale)	3333	140
Institut National de La Sante et de La Recherche Medicale (inserm)	3144	135
Regeneron Pharmaceuticals, Inc.	4618	126
The University of Tokyo	4329	123
Osaka University	3301	122
Immatics Biotechnologies GmbH	1117	116
F. Hoffmann-La Roche AG	7837	115
Kyoto University	2892	113
Board of Regents, The University of Texas System	6050	107
The Brigham and Women's Hospital, Inc.	2270	94
The Broad Institute, Inc.	1937	94
The Trustees of Columbia University in the City of New York	3633	83
Other owners		21224