- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 3/38 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
Patent holdings for IPC class C01B 3/38
Total number of patents in this class: 2702
10-year publication summary
|
143
|
170
|
158
|
151
|
143
|
151
|
142
|
159
|
178
|
65
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 4118 |
164 |
| Topsoe A/S | 1049 |
127 |
| Haldor Topsøe A/S | 636 |
90 |
| Panasonic Intellectual Property Management Co., Ltd. | 34035 |
85 |
| Praxair Technology, Inc. | 1220 |
84 |
| Saudi Arabian Oil Company | 14248 |
77 |
| Panasonic Corporation | 18962 |
76 |
| Casale SA | 634 |
59 |
| Air Products and Chemicals, Inc. | 1474 |
45 |
| SABIC Global Technologies B.V. | 4599 |
45 |
| Johnson Matthey Davy Technologies Limited | 529 |
39 |
| Johnson Matthey Public Limited Company | 1761 |
35 |
| Watt Fuel Cell Corp. | 171 |
34 |
| Shell Internationale Research Maatschappij B.V. | 3398 |
31 |
| Aramco Services Company | 4196 |
31 |
| JX Nippon Oil & Energy Corporation | 978 |
30 |
| ENI S.p.A. | 1308 |
29 |
| 8 Rivers Capital, LLC | 232 |
25 |
| ThyssenKrupp AG | 3399 |
25 |
| Honda Motor Co., Ltd. | 26034 |
23 |
| Other owners | 1548 |