- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 3/56 - Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with solidsRegeneration of used solids
Patent holdings for IPC class C01B 3/56
Total number of patents in this class: 1164
10-year publication summary
|
50
|
84
|
48
|
83
|
67
|
112
|
95
|
108
|
110
|
22
|
| 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 | 4053 |
105 |
| Uop LLC | 4315 |
57 |
| Air Products and Chemicals, Inc. | 1466 |
47 |
| Saudi Arabian Oil Company | 13953 |
21 |
| Topsoe A/S | 1007 |
19 |
| Praxair Technology, Inc. | 1228 |
18 |
| Linde GmbH | 1339 |
18 |
| Panasonic Intellectual Property Management Co., Ltd. | 33602 |
16 |
| Shell Internationale Research Maatschappij B.V. | 3456 |
15 |
| Casale SA | 628 |
15 |
| Johnson Matthey Davy Technologies Limited | 499 |
15 |
| Linde Aktiengesellschaft | 1435 |
15 |
| Sawafuji Electric Co., Ltd. | 62 |
15 |
| ThermoChem Recovery International, Inc. | 98 |
15 |
| ExxonMobil Research And Engineering Company | 2468 |
12 |
| Hyundai Motor Company | 23824 |
12 |
| Nederlandse Organisatie voor Toegepast-natuurwetenschappelijk Onderzoek TNO | 2423 |
12 |
| Osaka Gas Co., Ltd. | 313 |
12 |
| Haldor Topsøe A/S | 637 |
12 |
| 8 Rivers Capital, LLC | 235 |
11 |
| Other owners | 702 |