Patent holdings for IPC class C01B 3/36

Total number of patents in this class: 793

10-year publication summary

37
42
34
40
32
49
45
66
57
7
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Saudi Arabian Oil Company
13943
35
L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
4050
34
Praxair Technology, Inc.
1227
34
Air Products and Chemicals, Inc.
1462
33
BASF SE
21129
24
Shell Internationale Research Maatschappij B.V.
3461
22
Casale SA
625
20
Topsoe A/S
1000
13
Eastman Chemical Company
2090
12
Kellogg Brown & Root LLC
521
12
Linde Aktiengesellschaft
1435
12
Shell Oil Company
2095
10
Enerday GmbH
90
9
IHI Corporation
3516
9
8 Rivers Capital, LLC
235
8
Watt Fuel Cell Corp.
169
8
Iogen Corporation
154
7
Velocys Technologies Limited
78
7
Uop LLC
4307
6
Grannus, LLC
14
6
Other owners 472