- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 3/00 - HydrogenGaseous mixtures containing hydrogenSeparation of hydrogen from mixtures containing itPurification of hydrogen
Patent holdings for IPC class C01B 3/00
Total number of patents in this class: 1484
10-year publication summary
|
99
|
90
|
79
|
82
|
105
|
97
|
118
|
115
|
111
|
29
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hydrogenious Lohc Technologies GmbH | 61 |
31 |
| Panasonic Intellectual Property Management Co., Ltd. | 33602 |
24 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11013 |
23 |
| Saudi Arabian Oil Company | 13953 |
20 |
| Hyundai Motor Company | 23824 |
14 |
| Uop LLC | 4315 |
14 |
| Arkema France | 4185 |
14 |
| Centre National de La Recherche Scientifique | 10881 |
13 |
| Chevron U.S.A. Inc. | 4092 |
13 |
| Clean Planet Inc. | 84 |
13 |
| Hydrogenious Technologies GmbH | 19 |
13 |
| GKN Sinter Metals Engineering GmbH | 115 |
12 |
| Air Products and Chemicals, Inc. | 1466 |
11 |
| Hysilabs, SAS | 25 |
11 |
| Korea Advanced Institute of Science and Technology | 4575 |
10 |
| Hydro-Quebec | 635 |
10 |
| Hitachi, Ltd. | 15904 |
9 |
| Chiyoda Corporation | 420 |
9 |
| Praxair Technology, Inc. | 1228 |
9 |
| Siemens AG | 24199 |
8 |
| Other owners | 1203 |