- 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: 282
10-year publication summary
|
19
|
22
|
12
|
20
|
21
|
23
|
39
|
40
|
34
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Topsoe A/S | 826 |
23 |
| NGK Insulators, Ltd. | 4791 |
18 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3585 |
16 |
| Johnson Matthey Davy Technologies Limited | 236 |
10 |
| Gascontec GmbH | 33 |
9 |
| Sumitomo Chemical Company, Limited | 8976 |
8 |
| SABIC Global Technologies B.V. | 4193 |
8 |
| Haldor Topsøe A/S | 675 |
8 |
| Mitsubishi Heavy Industries, Ltd. | 8515 |
7 |
| Siemens AG | 24572 |
6 |
| Velocys, Inc. | 74 |
6 |
| Casale SA | 593 |
5 |
| Mitsubishi Gas Chemical Company, Inc. | 3343 |
5 |
| Silicon Fire AG | 20 |
5 |
| Clariant International Ltd. | 955 |
4 |
| Lurgi GmbH | 99 |
4 |
| Lone Gull Holdings, Ltd. | 105 |
4 |
| Linde GmbH | 1218 |
4 |
| ExxonMobil Research And Engineering Company | 2675 |
3 |
| Johnson Matthey Public Limited Company | 1850 |
3 |
| Other owners | 126 |