- All sections
- C - Chemistrymetallurgy
- C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K 3/20 - OxidesHydroxides
Patent holdings for IPC class C08K 3/20
Total number of patents in this class: 684
10-year publication summary
|
50
|
34
|
46
|
44
|
37
|
36
|
23
|
29
|
28
|
21
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BASF SE | 20979 |
14 |
| Sekisui Chemical Co., Ltd. | 3441 |
12 |
| Dow Global Technologies LLC | 10402 |
11 |
| Sumitomo Chemical Company, Limited | 9047 |
9 |
| Daikin Industries, Ltd. | 10070 |
9 |
| DIC Corporation | 3812 |
9 |
| 3m Innovative Properties Company | 17795 |
8 |
| Asahi Kasei Kabushiki Kaisha | 2684 |
8 |
| Shin-Etsu Chemical Co., Ltd. | 5685 |
7 |
| PPG Industries Ohio, Inc. | 3443 |
7 |
| DuPont Electronics, Inc. | 377 |
7 |
| Sumitomo Electric Industries, Ltd. | 15593 |
6 |
| FUJIFILM Corporation | 29543 |
6 |
| Rohm and Haas Company | 2895 |
6 |
| Zeon Corporation | 4077 |
6 |
| Industrial Technology Research Institute | 5077 |
5 |
| Yazaki Corporation | 6726 |
5 |
| Life Technologies Corporation | 3320 |
5 |
| Mitsui Chemicals, Inc. | 3232 |
5 |
| Henkel AG & Co. KGaA | 10609 |
5 |
| Other owners | 534 |