- All sections
- C - Chemistry; metallurgy
- C08L - Compositions of macromolecular compounds
- C08L 67/03 - Polyesters derived from dicarboxylic acids and dihydroxy compounds the dicarboxylic acids and dihydroxy compounds having the hydroxy and the carboxyl groups directly linked to aromatic rings
Patent holdings for IPC class C08L 67/03
Total number of patents in this class: 721
10-year publication summary
|
51
|
45
|
64
|
75
|
40
|
54
|
72
|
49
|
41
|
11
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| SK Chemicals Co., Ltd. | 568 |
36 |
| Sumitomo Chemical Company, Limited | 8808 |
27 |
| Ticona LLC | 547 |
22 |
| LG Chem, Ltd. | 17205 |
18 |
| Polyplastics Co., Ltd. | 563 |
17 |
| Unitika Ltd. | 441 |
14 |
| BASF SE | 19740 |
12 |
| E. I. du Pont de Nemours and Company | 4345 |
12 |
| Toray Industries, Inc. | 6652 |
12 |
| Toray Plastics (America), Inc. | 196 |
12 |
| Kaneka Corporation | 4445 |
11 |
| Eastman Chemical Company | 2239 |
11 |
| Toyobo Co., Ltd. | 2286 |
11 |
| Samsung SDI Co., Ltd. | 6671 |
9 |
| Mitsubishi Chemical Corporation | 4313 |
9 |
| Samsung Fine Chemicals Co., Ltd. | 181 |
9 |
| DIC Corporation | 3597 |
8 |
| Huvis Corporation | 61 |
8 |
| Kolon Industries, Inc. | 1506 |
8 |
| Mitsubishi Engineering-Plastics Corporation | 311 |
8 |
| Other owners | 447 |