- All sections
- C - Chemistry; metallurgy
- C08L - Compositions of macromolecular compounds
- C08L 25/04 - Homopolymers or copolymers of styrene
Patent holdings for IPC class C08L 25/04
Total number of patents in this class: 597
10-year publication summary
|
39
|
52
|
27
|
44
|
32
|
30
|
27
|
41
|
32
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Chem, Ltd. | 17205 |
24 |
| Mitsubishi Engineering-Plastics Corporation | 311 |
19 |
| Idemitsu Kosan Co., Ltd. | 3995 |
18 |
| BASF SE | 19740 |
15 |
| Toyo Styrene Co., Ltd. | 27 |
15 |
| Dow Global Technologies LLC | 10147 |
13 |
| Kaneka Corporation | 4445 |
13 |
| Mitsui Chemicals, Inc. | 3134 |
12 |
| Denka Company Limited | 2189 |
12 |
| Sekisui Plastics Co., Ltd. | 345 |
12 |
| Toray Industries, Inc. | 6652 |
9 |
| Asahi Kasei Chemicals Corporation | 809 |
9 |
| Denki Kagaku Kogyo Kabushiki Kaisha | 680 |
9 |
| Asahi Kasei Kabushiki Kaisha | 2429 |
8 |
| PolyOne Corporation | 221 |
8 |
| Cheil Industries Inc. | 944 |
7 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
7 |
| Sabic Innovative Plastics IP B.V. | 683 |
7 |
| The Chemours Company Fc, LLC | 1107 |
7 |
| Sumitomo Rubber Industries, Ltd. | 4421 |
6 |
| Other owners | 367 |