- 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: 1457
10-year publication summary
|
99
|
89
|
76
|
80
|
100
|
96
|
115
|
113
|
114
|
47
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hydrogenious Lohc Technologies GmbH | 63 |
31 |
| Panasonic Intellectual Property Management Co., Ltd. | 34623 |
24 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11137 |
22 |
| Saudi Arabian Oil Company | 14398 |
18 |
| Uop LLC | 4407 |
16 |
| Hyundai Motor Company | 25119 |
14 |
| Chevron U.S.A. Inc. | 4180 |
14 |
| Hydrogenious Technologies GmbH | 19 |
13 |
| Centre National de La Recherche Scientifique | 11133 |
12 |
| GKN Sinter Metals Engineering GmbH | 115 |
12 |
| Air Products and Chemicals, Inc. | 1476 |
11 |
| Clean Planet Inc. | 85 |
11 |
| Hysilabs, SAS | 25 |
11 |
| Arkema France | 4232 |
10 |
| Brilliant Light Power, Inc. | 71 |
10 |
| Hydro-Quebec | 638 |
10 |
| The Regents of the University of California | 20960 |
9 |
| Hitachi, Ltd. | 16221 |
9 |
| Korea Advanced Institute of Science and Technology | 4725 |
9 |
| Siemens AG | 23934 |
8 |
| Other owners | 1183 |