- 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: 1205
10-year publication summary
|
50
|
84
|
48
|
84
|
67
|
113
|
98
|
108
|
113
|
68
|
| 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 | 4148 |
109 |
| Uop LLC | 4407 |
61 |
| Air Products and Chemicals, Inc. | 1476 |
47 |
| Topsoe A/S | 1080 |
26 |
| Saudi Arabian Oil Company | 14398 |
21 |
| Linde GmbH | 1386 |
19 |
| Casale SA | 638 |
17 |
| Praxair Technology, Inc. | 1203 |
17 |
| Panasonic Intellectual Property Management Co., Ltd. | 34623 |
16 |
| Johnson Matthey Davy Technologies Limited | 540 |
15 |
| Linde Aktiengesellschaft | 1410 |
15 |
| Sawafuji Electric Co., Ltd. | 63 |
15 |
| ThermoChem Recovery International, Inc. | 97 |
15 |
| Hyundai Motor Company | 25119 |
14 |
| Shell Internationale Research Maatschappij B.V. | 3378 |
13 |
| ExxonMobil Research And Engineering Company | 2389 |
12 |
| Nederlandse Organisatie voor Toegepast-natuurwetenschappelijk Onderzoek TNO | 2463 |
12 |
| Osaka Gas Co., Ltd. | 316 |
12 |
| Haldor Topsøe A/S | 629 |
12 |
| 8 Rivers Capital, LLC | 229 |
11 |
| Other owners | 726 |