- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 209/84 - Purification
Patent holdings for IPC class C07C 209/84
Total number of patents in this class: 260
10-year publication summary
|
14
|
16
|
13
|
12
|
17
|
12
|
14
|
15
|
15
|
12
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BASF SE | 20915 |
37 |
| Covestro Deutschland AG | 2754 |
17 |
| Dow Global Technologies LLC | 10349 |
9 |
| Cathay Biotech Inc. | 96 |
9 |
| CJ Cheiljedang Corporation | 3424 |
8 |
| Tokuyama Corporation | 1394 |
7 |
| Evonik Operations GmbH | 4117 |
6 |
| Orphalan S.A. | 7 |
5 |
| Bayer MaterialScience AG | 800 |
4 |
| Sumitomo Chemical Company, Limited | 9049 |
4 |
| Toray Industries, Inc. | 6951 |
4 |
| Central Glass Company, Limited | 1265 |
4 |
| Genomatica, Inc. | 491 |
4 |
| Zogenix International Limited | 76 |
4 |
| Cibt America Inc. | 98 |
4 |
| Huntsman Petrochemical LLC | 294 |
3 |
| Mitsubishi Gas Chemical Company, Inc. | 3466 |
3 |
| Oryzon Genomics S.A. | 106 |
3 |
| Stella Chemifa Corporation | 119 |
3 |
| Wanhua Chemical Group Co., Ltd. | 353 |
3 |
| Other owners | 119 |