- All sections
- C - Chemistrymetallurgy
- C08L - Compositions of macromolecular compounds
- C08L 25/18 - Homopolymers or copolymers of aromatic monomers containing elements other than carbon and hydrogen
Patent holdings for IPC class C08L 25/18
Total number of patents in this class: 346
10-year publication summary
|
11
|
21
|
44
|
40
|
29
|
28
|
34
|
18
|
21
|
13
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Chem, Ltd. | 17594 |
13 |
| FUJIFILM Corporation | 29295 |
12 |
| Shin-Etsu Chemical Co., Ltd. | 5632 |
10 |
| Dow Global Technologies LLC | 10401 |
8 |
| Toray Industries, Inc. | 6930 |
8 |
| JSR Corporation | 2514 |
7 |
| Kuraray Co., Ltd. | 3502 |
6 |
| Shengyi Technology Co., Ltd. | 262 |
6 |
| Nissan Chemical Corporation | 2000 |
6 |
| KEMET Electronics Corporation | 330 |
5 |
| Zeon Corporation | 4079 |
5 |
| E. I. du Pont de Nemours and Company | 4096 |
4 |
| The Yokohama Rubber Co., Ltd. | 4028 |
4 |
| Heraeus Precious Metals GmbH & Co. KG | 79 |
4 |
| Heraeus Epurio GmbH | 58 |
4 |
| The Board of Trustees of the Leland Stanford Junior University | 6396 |
3 |
| Agfa-Gevaert | 287 |
3 |
| Akron Polymer Systems, Inc. | 74 |
3 |
| Cornell University | 3292 |
3 |
| Denka Company Limited | 2561 |
3 |
| Other owners | 229 |