Patent holdings for IPC class C01B 32/50

Total number of patents in this class: 1427

10-year publication summary

60
108
91
88
119
141
186
206
242
140
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Mitsubishi Heavy Industries, Ltd.
9152
89
Saudi Arabian Oil Company
14275
29
L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
4120
28
NGK Insulators, Ltd.
5241
26
Uop LLC
4388
17
Mitsubishi Heavy Industries Engineering, Ltd.
194
17
Denso Corporation
25607
14
IHI Corporation
3531
13
Iogen Corporation
161
12
The Kansai Electric Power Co., Inc.
122
12
Nitto Denko Corporation
8543
11
Asahi Kasei Kabushiki Kaisha
2838
11
Carbon Holdings Intellectual Properties, LLC
68
11
Toshiba Corporation
12577
10
8 Rivers Capital, LLC
232
10
Mitsubishi Gas Chemical Company, Inc.
3631
10
Research Institute of Innovative Technology for the Earth
86
10
Infinium Technology, LLC
95
10
Honda Motor Co., Ltd.
26064
9
Mitsubishi Electric Corporation
48097
9
Other owners 1069