- 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: 1460
10-year publication summary
|
99
|
90
|
77
|
81
|
101
|
98
|
116
|
113
|
113
|
42
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hydrogenious Lohc Technologies GmbH | 62 |
31 |
| Panasonic Intellectual Property Management Co., Ltd. | 34145 |
24 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11130 |
22 |
| Saudi Arabian Oil Company | 14296 |
18 |
| Uop LLC | 4390 |
16 |
| Hyundai Motor Company | 24787 |
14 |
| Chevron U.S.A. Inc. | 4155 |
14 |
| Hydrogenious Technologies GmbH | 19 |
13 |
| Centre National de La Recherche Scientifique | 11055 |
12 |
| Clean Planet Inc. | 85 |
12 |
| GKN Sinter Metals Engineering GmbH | 115 |
12 |
| Air Products and Chemicals, Inc. | 1470 |
11 |
| Hysilabs, SAS | 25 |
11 |
| Arkema France | 4249 |
10 |
| Hydro-Quebec | 633 |
10 |
| The Regents of the University of California | 20802 |
9 |
| Hitachi, Ltd. | 16157 |
9 |
| Korea Advanced Institute of Science and Technology | 4686 |
9 |
| Praxair Technology, Inc. | 1215 |
9 |
| Siemens AG | 23996 |
8 |
| Other owners | 1186 |