- 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: 353
10-year publication summary
|
30
|
29
|
22
|
32
|
27
|
23
|
21
|
29
|
17
|
10
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BASF SE | 21306 |
26 |
| LG Chem, Ltd. | 17950 |
14 |
| PPG Industries Ohio, Inc. | 3324 |
8 |
| JSR Corporation | 2552 |
7 |
| INEOS Styrolution Group GmbH | 361 |
7 |
| Mitsubishi Gas Chemical Company, Inc. | 3634 |
7 |
| Nippon Shokubai Co., Ltd. | 1534 |
6 |
| Centre National de La Recherche Scientifique | 11059 |
5 |
| Rohm and Haas Company | 2943 |
5 |
| Dow Global Technologies LLC | 10994 |
5 |
| GreenMantra Recycling Technologies Ltd. | 72 |
5 |
| Kemira Oyj | 1264 |
5 |
| Panasonic Intellectual Property Management Co., Ltd. | 34265 |
4 |
| Konica Minolta, Inc. | 9150 |
4 |
| Denka Company Limited | 2747 |
4 |
| Organik Kimya Sanayi ve Tic. A.S. | 26 |
4 |
| The Regents of the University of California | 20815 |
3 |
| E. I. du Pont de Nemours and Company | 3486 |
3 |
| Hewlett-Packard Development Company, L.P. | 25170 |
3 |
| FUJIFILM Corporation | 30594 |
3 |
| Other owners | 225 |