- All sections
- C - Chemistry; metallurgy
- C01B - Non-metallic elements; compounds thereof
- C01B 7/07 - Purification
Patent holdings for IPC class C01B 7/07
Total number of patents in this class: 157
10-year publication summary
|
14
|
12
|
17
|
15
|
7
|
8
|
9
|
11
|
7
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bayer MaterialScience AG | 840 |
15 |
| BASF SE | 20432 |
12 |
| Covestro Deutschland AG | 2692 |
12 |
| HCL Cleantech Ltd. | 17 |
8 |
| SGL Carbon SE | 386 |
6 |
| Arkema France | 3889 |
5 |
| Tokuyama Corporation | 1342 |
5 |
| Avantium Knowledge Centre B.V. | 176 |
5 |
| Honeywell International Inc. | 14021 |
3 |
| Huntsman International LLC | 710 |
3 |
| Sumitomo Chemical Company, Limited | 8988 |
2 |
| Albemarle Corporation | 511 |
2 |
| Andritz AG | 226 |
2 |
| Enviro Water Minerals Company, Inc. | 24 |
2 |
| FPInnovations | 260 |
2 |
| Hong-in Chemical Co., Ltd. | 2 |
2 |
| Johnson Matthey Public Limited Company | 1852 |
2 |
| Lifezone Limited | 5 |
2 |
| Max-Planck-Gesellschaft zur Forderung der Wissenschaften e.V. | 1744 |
2 |
| Solvay SA | 1030 |
2 |
| Other owners | 63 |