- 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: 1117
10-year publication summary
|
53
|
50
|
84
|
48
|
83
|
66
|
109
|
95
|
102
|
81
|
| 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 | 3975 |
107 |
| Uop LLC | 4244 |
55 |
| Air Products and Chemicals, Inc. | 1423 |
45 |
| Praxair Technology, Inc. | 1298 |
20 |
| Johnson Matthey Public Limited Company | 1850 |
19 |
| Linde GmbH | 1263 |
18 |
| Saudi Arabian Oil Company | 13155 |
17 |
| Shell Internationale Research Maatschappij B.V. | 3540 |
16 |
| Panasonic Intellectual Property Management Co., Ltd. | 31375 |
16 |
| Topsoe A/S | 891 |
16 |
| Linde Aktiengesellschaft | 1506 |
15 |
| Sawafuji Electric Co., Ltd. | 62 |
15 |
| ThermoChem Recovery International, Inc. | 99 |
15 |
| Casale SA | 609 |
13 |
| Osaka Gas Co., Ltd. | 314 |
13 |
| ExxonMobil Research And Engineering Company | 2573 |
12 |
| Nederlandse Organisatie voor Toegepast-natuurwetenschappelijk Onderzoek TNO | 2376 |
12 |
| Haldor Topsøe A/S | 659 |
12 |
| Hyundai Motor Company | 21987 |
11 |
| JX Nippon Oil & Energy Corporation | 999 |
10 |
| Other owners | 660 |