- All sections
- C - Chemistrymetallurgy
- C08F - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C08F 257/02 - Macromolecular compounds obtained by polymerising monomers on to polymers of aromatic monomers as defined in group on to polymers of styrene or alkyl-substituted styrenes
Patent holdings for IPC class C08F 257/02
Total number of patents in this class: 328
10-year publication summary
|
17
|
30
|
29
|
22
|
32
|
27
|
21
|
21
|
26
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BASF SE | 20432 |
28 |
| LG Chem, Ltd. | 17639 |
14 |
| JSR Corporation | 2476 |
9 |
| PPG Industries Ohio, Inc. | 3449 |
8 |
| INEOS Styrolution Group GmbH | 342 |
7 |
| Nippon Shokubai Co., Ltd. | 1513 |
6 |
| Centre National de La Recherche Scientifique | 10102 |
5 |
| Dow Global Technologies LLC | 10156 |
5 |
| GreenMantra Recycling Technologies Ltd. | 65 |
5 |
| Kemira Oyj | 1210 |
5 |
| Konica Minolta, Inc. | 8535 |
4 |
| Rohm and Haas Company | 2852 |
4 |
| F. Hoffmann-La Roche AG | 7942 |
3 |
| The Regents of the University of California | 19517 |
3 |
| E. I. du Pont de Nemours and Company | 4249 |
3 |
| Hewlett-Packard Development Company, L.P. | 27461 |
3 |
| FUJIFILM Corporation | 28805 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 29733 |
3 |
| Bridgestone Corporation | 7147 |
3 |
| Mitsubishi Chemical Corporation | 4447 |
3 |
| Other owners | 204 |