Patent holdings for IPC class C01B 3/36

Total number of patents in this class: 800

10-year publication summary

37
42
34
40
32
49
45
66
57
5
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Praxair Technology, Inc.
1252
35
Saudi Arabian Oil Company
13921
35
Air Products and Chemicals, Inc.
1463
34
L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
4045
34
Shell Internationale Research Maatschappij B.V.
3493
24
BASF SE
21131
23
Casale SA
632
21
Topsoe A/S
992
13
Eastman Chemical Company
2102
12
Kellogg Brown & Root LLC
520
12
Linde Aktiengesellschaft
1453
12
Shell Oil Company
2111
10
Enerday GmbH
91
9
IHI Corporation
3506
9
Watt Fuel Cell Corp.
168
8
8 Rivers Capital, LLC
240
7
Grannus, LLC
14
7
Iogen Corporation
152
7
Velocys Technologies Limited
78
7
Powercell Sweden AB
120
6
Other owners 475