- All sections
- C - Chemistry; metallurgy
- C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K 7/04 - Fibres or whiskers inorganic
Patent holdings for IPC class C08K 7/04
Total number of patents in this class: 429
10-year publication summary
|
31
|
25
|
30
|
34
|
37
|
29
|
43
|
27
|
29
|
10
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Polyplastics Co., Ltd. | 563 |
19 |
| Idemitsu Kosan Co., Ltd. | 3995 |
11 |
| Arkema France | 3790 |
10 |
| Mitsubishi Engineering-Plastics Corporation | 311 |
10 |
| Ticona LLC | 547 |
9 |
| Toray Industries, Inc. | 6652 |
8 |
| Otsuka Chemical Co., Ltd. | 286 |
7 |
| 3m Innovative Properties Company | 18406 |
6 |
| Sumitomo Chemical Company, Limited | 8808 |
6 |
| Mitsubishi Gas Chemical Company, Inc. | 3188 |
6 |
| Sekisui Chemical Co., Ltd. | 3159 |
6 |
| Rockwool A/S | 753 |
6 |
| Unitika Ltd. | 441 |
5 |
| E. I. du Pont de Nemours and Company | 4345 |
4 |
| FUJIFILM Corporation | 27102 |
4 |
| Mitsubishi Chemical Corporation | 4313 |
4 |
| Daicel-evonik Ltd. | 55 |
4 |
| Japan Polypropylene Corporation | 132 |
4 |
| Johns Manville | 980 |
4 |
| LG Hausys, Ltd. | 839 |
4 |
| Other owners | 292 |