- 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: 345
10-year publication summary
|
29
|
27
|
22
|
31
|
26
|
22
|
21
|
26
|
17
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BASF SE | 21134 |
28 |
| LG Chem, Ltd. | 17737 |
14 |
| PPG Industries Ohio, Inc. | 3383 |
8 |
| JSR Corporation | 2545 |
8 |
| INEOS Styrolution Group GmbH | 355 |
7 |
| Nippon Shokubai Co., Ltd. | 1518 |
6 |
| Centre National de La Recherche Scientifique | 10805 |
5 |
| Rohm and Haas Company | 2942 |
5 |
| Dow Global Technologies LLC | 10701 |
5 |
| GreenMantra Recycling Technologies Ltd. | 71 |
5 |
| Kemira Oyj | 1231 |
5 |
| Panasonic Intellectual Property Management Co., Ltd. | 32983 |
4 |
| Konica Minolta, Inc. | 8964 |
4 |
| Denka Company Limited | 2678 |
4 |
| Mitsubishi Gas Chemical Company, Inc. | 3547 |
4 |
| Organik Kimya Sanayi ve Tic. A.S. | 23 |
4 |
| The Regents of the University of California | 20378 |
3 |
| E. I. du Pont de Nemours and Company | 3767 |
3 |
| Hewlett-Packard Development Company, L.P. | 25454 |
3 |
| FUJIFILM Corporation | 30034 |
3 |
| Other owners | 217 |