- 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: 1123
10-year publication summary
|
46
|
47
|
76
|
47
|
72
|
61
|
87
|
81
|
99
|
89
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
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 | 4003 |
106 |
| Uop LLC | 4246 |
55 |
| Air Products and Chemicals, Inc. | 1447 |
46 |
| Praxair Technology, Inc. | 1283 |
20 |
| Johnson Matthey Public Limited Company | 1873 |
19 |
| Saudi Arabian Oil Company | 13409 |
17 |
| Linde GmbH | 1265 |
17 |
| Shell Internationale Research Maatschappij B.V. | 3557 |
16 |
| Panasonic Intellectual Property Management Co., Ltd. | 32052 |
16 |
| Topsoe A/S | 910 |
16 |
| Linde Aktiengesellschaft | 1496 |
15 |
| Sawafuji Electric Co., Ltd. | 62 |
15 |
| ThermoChem Recovery International, Inc. | 99 |
15 |
| Casale SA | 621 |
14 |
| Osaka Gas Co., Ltd. | 312 |
13 |
| ExxonMobil Research And Engineering Company | 2562 |
12 |
| Nederlandse Organisatie voor Toegepast-natuurwetenschappelijk Onderzoek TNO | 2383 |
12 |
| Haldor Topsøe A/S | 657 |
12 |
| Hyundai Motor Company | 22369 |
11 |
| JX Nippon Oil & Energy Corporation | 999 |
10 |
| Other owners | 666 |