Patent holdings for IPC class C01B 39/20

Total number of patents in this class: 157

10-year publication summary

12
13
10
8
12
9
5
18
10
1
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Saudi Arabian Oil Company
13981
22
King Abdullah University of Science and Technology
1838
16
Aramco Services Company
4166
8
Uop LLC
4346
7
Centre National de La Recherche Scientifique
10932
6
Arkema France
4197
6
IFP Energies Nouvelles
3058
6
Chevron U.S.A. Inc.
4113
5
Tosoh Corporation
1393
5
Dalian Institute of Chemical Physics, Chinese Academy of Sciences
701
4
W. R. Grace & Co.-Conn.
295
4
Ecole Nationale Supérieure d'Ingénieurs de Caen
65
4
Universite de Caen Normandie
126
4
Exelus, Inc.
31
3
Khalifa University of Science and Technology
424
3
ExxonMobil Research And Engineering Company
2452
2
BASF Corporation
1679
2
NGK Insulators, Ltd.
5226
2
Admatechs Company Limited
90
2
Ohio State Innovation Foundation
2338
2
Other owners 44