- 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: 441
10-year publication summary
|
28
|
36
|
21
|
12
|
20
|
23
|
34
|
38
|
41
|
10
|
| 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 | 1862 |
30 |
| Topsoe A/S | 876 |
25 |
| Shell Internationale Research Maatschappij B.V. | 3544 |
18 |
| ExxonMobil Research And Engineering Company | 2592 |
13 |
| Clariant International Ltd. | 933 |
11 |
| Shell USA, Inc. | 1190 |
10 |
| Haldor Topsøe A/S | 662 |
9 |
| Mitsubishi Heavy Industries, Ltd. | 8647 |
8 |
| Nederlandse Organisatie voor Toegepast-natuurwetenschappelijk Onderzoek TNO | 2367 |
7 |
| Petroleo Brasileiro S.A. - Petrobras | 824 |
7 |
| SABIC Global Technologies B.V. | 4288 |
6 |
| BASF SE | 20777 |
5 |
| IFP Energies Nouvelles | 2893 |
5 |
| Johnson Matthey Davy Technologies Limited | 270 |
5 |
| Korea Institute of Energy Research | 845 |
5 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3932 |
5 |
| Renaissance Energy Research Corporation | 60 |
5 |
| Uop LLC | 4209 |
4 |
| Saudi Basic Industries Corporation | 573 |
4 |
| Air Products and Chemicals, Inc. | 1401 |
4 |
| Other owners | 255 |