- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 3/16 - 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 by reaction of water vapour with carbon monoxide using catalysts
Patent holdings for IPC class C01B 3/16
Total number of patents in this class: 448
10-year publication summary
|
28
|
31
|
21
|
11
|
15
|
16
|
26
|
36
|
40
|
15
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Johnson Matthey Public Limited Company | 1867 |
30 |
| Topsoe A/S | 909 |
26 |
| Shell Internationale Research Maatschappij B.V. | 3553 |
20 |
| ExxonMobil Research And Engineering Company | 2562 |
13 |
| Clariant International Ltd. | 933 |
11 |
| Shell USA, Inc. | 1235 |
11 |
| Haldor Topsøe A/S | 659 |
9 |
| Mitsubishi Heavy Industries, Ltd. | 8783 |
8 |
| Nederlandse Organisatie voor Toegepast-natuurwetenschappelijk Onderzoek TNO | 2384 |
7 |
| Petroleo Brasileiro S.A. - Petrobras | 862 |
7 |
| BASF SE | 20979 |
6 |
| IFP Energies Nouvelles | 2952 |
6 |
| SABIC Global Technologies B.V. | 4361 |
6 |
| Air Products and Chemicals, Inc. | 1442 |
5 |
| Arkema France | 4164 |
5 |
| Johnson Matthey Davy Technologies Limited | 281 |
5 |
| Korea Institute of Energy Research | 864 |
5 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3994 |
5 |
| Renaissance Energy Research Corporation | 61 |
5 |
| Saudi Arabian Oil Company | 13349 |
5 |
| Other owners | 253 |