- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 3/08 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents with metals
Patent holdings for IPC class C01B 3/08
Total number of patents in this class: 403
10-year publication summary
|
25
|
33
|
27
|
37
|
28
|
23
|
35
|
25
|
32
|
20
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Massachusetts Institute of Technology | 10057 |
12 |
| iHOD Ltd | 18 |
9 |
| Ltag Systems LLC | 36 |
9 |
| B&B Gulf LLC | 7 |
6 |
| Hitachi Maxell, Ltd. | 438 |
5 |
| H2 Catalyst, LLC | 6 |
5 |
| Intelligent Energy Limited | 406 |
5 |
| Miz Co., Ltd. | 39 |
5 |
| The Royal Institution for The Advancement of Learning / McGill University | 689 |
5 |
| Honeywell International Inc. | 13545 |
4 |
| Centre National de La Recherche Scientifique | 10418 |
4 |
| Ergosup | 12 |
4 |
| Kit Co, Ltd. | 23 |
4 |
| Myfc AB | 31 |
4 |
| H2 Water Technologies Ltd. | 8 |
4 |
| Bosquet Silicon Corp. | 17 |
4 |
| Seiko Epson Corporation | 19352 |
3 |
| Aramco Services Company | 3969 |
3 |
| Clean Wave Energy Corp | 3 |
3 |
| Institut Polytechnique de Bordeaux | 400 |
3 |
| Other owners | 302 |