- All sections
- C - Chemistrymetallurgy
- C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K 5/1539 - Cyclic anhydrides
Patent holdings for IPC class C08K 5/1539
Total number of patents in this class: 163
10-year publication summary
|
13
|
6
|
10
|
19
|
20
|
14
|
6
|
13
|
18
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kureha Corporation | 1033 |
9 |
| BASF SE | 20991 |
5 |
| Henkel AG & Co. KGaA | 10611 |
5 |
| Omya International AG | 771 |
5 |
| Solutia Inc. | 418 |
5 |
| Mitsubishi Chemical Corporation | 4545 |
4 |
| The Coca-Cola Company | 2486 |
4 |
| Mitsubishi Gas Chemical Company, Inc. | 3482 |
4 |
| LG Chem, Ltd. | 17656 |
3 |
| Xerox Corporation | 6979 |
3 |
| Toray Industries, Inc. | 6978 |
3 |
| DAK Americas, L.L.C. | 45 |
3 |
| Toyo Seikan Group Holdings, Ltd. | 844 |
3 |
| Eneos Materials Corporation | 271 |
3 |
| FUJIFILM Corporation | 29586 |
2 |
| Arkema France | 4168 |
2 |
| DongSung Chemical Co., Ltd. | 51 |
2 |
| Fisher & Paykel Healthcare Limited | 2497 |
2 |
| Henkel IP & Holding GmbH | 565 |
2 |
| JNC Corporation | 1563 |
2 |
| Other owners | 92 |