- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 7/07 - Purification
Patent holdings for IPC class C01B 7/07
Total number of patents in this class: 162
10-year publication summary
|
12
|
17
|
15
|
7
|
8
|
9
|
11
|
7
|
9
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Covestro Deutschland AG | 2841 |
12 |
| BASF SE | 21318 |
10 |
| Bayer MaterialScience AG | 707 |
9 |
| HCL Cleantech Ltd. | 17 |
8 |
| SGL Carbon SE | 403 |
6 |
| Tokuyama Corporation | 1482 |
6 |
| Arkema France | 4246 |
5 |
| Avantium Knowledge Centre B.V. | 205 |
4 |
| Albemarle Corporation | 486 |
3 |
| ArcelorMittal | 2688 |
3 |
| Huntsman International LLC | 694 |
3 |
| Sumitomo Chemical Company, Limited | 8968 |
2 |
| Andritz AG | 244 |
2 |
| Enviro Water Minerals Company, Inc. | 24 |
2 |
| Hong-in Chemical Co., Ltd. | 2 |
2 |
| Johnson Matthey Davy Technologies Limited | 528 |
2 |
| Lifezone Limited | 5 |
2 |
| Max-Planck-Gesellschaft zur Forderung der Wissenschaften e.V. | 1844 |
2 |
| Mexichem Fluor, Sociedad Anonima de Capital Variable | 204 |
2 |
| Valmet Technologies Oy | 288 |
2 |
| Other owners | 75 |