- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 3/02 - Production of hydrogen or of gaseous mixtures containing hydrogen
Patent holdings for IPC class C01B 3/02
Total number of patents in this class: 1623
10-year publication summary
|
99
|
76
|
80
|
98
|
74
|
114
|
141
|
148
|
170
|
78
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Casale SA | 638 |
75 |
| Topsoe A/S | 1080 |
58 |
| ThyssenKrupp AG | 3333 |
32 |
| Kellogg Brown & Root LLC | 520 |
24 |
| Haldor Topsøe A/S | 629 |
21 |
| Air Products and Chemicals, Inc. | 1476 |
20 |
| Saudi Arabian Oil Company | 14398 |
20 |
| ThyssenKrupp Uhde GmbH | 388 |
19 |
| ThyssenKrupp Industrial Solutions AG | 630 |
17 |
| Mitsubishi Heavy Industries, Ltd. | 9252 |
15 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 4148 |
15 |
| Enerkem Inc. | 94 |
14 |
| Panasonic Intellectual Property Management Co., Ltd. | 34623 |
13 |
| Johnson Matthey Davy Technologies Limited | 540 |
13 |
| ThermoChem Recovery International, Inc. | 97 |
13 |
| Praxair Technology, Inc. | 1203 |
12 |
| Iogen Corporation | 160 |
11 |
| Stamicarbon B.V. Acting under The Name of MT Innovation Center | 54 |
11 |
| Carbon Holdings Intellectual Properties, LLC | 68 |
11 |
| Uop LLC | 4407 |
10 |
| Other owners | 1199 |