- All sections
- C - Chemistry; metallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 29/152 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases characterised by the reactor used
Patent holdings for IPC class C07C 29/152
Total number of patents in this class: 260
10-year publication summary
|
11
|
19
|
22
|
12
|
20
|
21
|
23
|
37
|
39
|
14
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Topsoe A/S | 732 |
23 |
| NGK Insulators, Ltd. | 4589 |
17 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3515 |
14 |
| Johnson Matthey Davy Technologies Limited | 216 |
9 |
| Gascontec GmbH | 31 |
8 |
| Haldor Topsøe A/S | 698 |
8 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
7 |
| Sumitomo Chemical Company, Limited | 8808 |
7 |
| Siemens AG | 24990 |
6 |
| Velocys, Inc. | 87 |
6 |
| Mitsubishi Gas Chemical Company, Inc. | 3188 |
5 |
| Silicon Fire AG | 20 |
5 |
| Casale SA | 572 |
4 |
| Clariant International Ltd. | 978 |
4 |
| Lurgi GmbH | 101 |
4 |
| SABIC Global Technologies B.V. | 4044 |
4 |
| Linde GmbH | 1122 |
4 |
| ExxonMobil Research And Engineering Company | 2830 |
3 |
| Johnson Matthey Public Limited Company | 1852 |
3 |
| L'Air Liquide, Societe Anonyme pour L'etude et L'exploitation des Proced ES Georges Claude | 296 |
3 |
| Other owners | 116 |