- All sections
- C - Chemistry; metallurgy
- 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: 330
10-year publication summary
|
16
|
11
|
21
|
44
|
40
|
29
|
28
|
34
|
18
|
6
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Chem, Ltd. | 17205 |
13 |
| Shin-Etsu Chemical Co., Ltd. | 5132 |
10 |
| FUJIFILM Corporation | 27102 |
9 |
| Dow Global Technologies LLC | 10147 |
8 |
| Toray Industries, Inc. | 6652 |
7 |
| JSR Corporation | 2476 |
6 |
| Heraeus Deutschland GmbH & Co. KG | 643 |
6 |
| Shengyi Technology Co., Ltd. | 255 |
6 |
| Zeon Corporation | 3854 |
6 |
| Heraeus Precious Metals GmbH & Co. KG | 53 |
5 |
| KEMET Electronics Corporation | 339 |
5 |
| Nissan Chemical Corporation | 1725 |
5 |
| E. I. du Pont de Nemours and Company | 4345 |
4 |
| The Yokohama Rubber Co., Ltd. | 3929 |
4 |
| The Board of Trustees of the Leland Stanford Junior University | 6054 |
3 |
| Akron Polymer Systems, Inc. | 71 |
3 |
| DuPont Electronic Polymers L.P. | 17 |
3 |
| Kuraray Co., Ltd. | 3392 |
3 |
| Tokyo Ohka Kogyo Co., Ltd. | 1481 |
3 |
| Toyo Styrene Co., Ltd. | 27 |
3 |
| Other owners | 218 |