- All sections
- C - Chemistrymetallurgy
- 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: 770
10-year publication summary
|
64
|
75
|
40
|
55
|
75
|
52
|
41
|
37
|
22
|
16
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| SK Chemicals Co., Ltd. | 651 |
38 |
| Sumitomo Chemical Company, Limited | 8996 |
28 |
| Ticona LLC | 604 |
24 |
| LG Chem, Ltd. | 17921 |
18 |
| Polyplastics Co., Ltd. | 623 |
18 |
| Toray Industries, Inc. | 7096 |
14 |
| Unitika Ltd. | 444 |
14 |
| BASF SE | 21303 |
13 |
| Toray Plastics (America), Inc. | 197 |
12 |
| Mitsubishi Chemical Corporation | 4721 |
12 |
| Toyobo Co., Ltd. | 2536 |
12 |
| E. I. du Pont de Nemours and Company | 3542 |
11 |
| Eastman Chemical Company | 2081 |
11 |
| Kaneka Corporation | 4693 |
10 |
| Samsung SDI Co., Ltd. | 10556 |
9 |
| Nan Ya Plastics Corporation | 499 |
9 |
| SABIC Global Technologies B.V. | 4596 |
9 |
| DIC Corporation | 3961 |
8 |
| Huvis Corporation | 70 |
8 |
| Mitsubishi Engineering-Plastics Corporation | 302 |
8 |
| Other owners | 484 |