- All sections
- C - Chemistrymetallurgy
- C08L - Compositions of macromolecular compounds
- C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones
Patent holdings for IPC class C08L 67/04
Total number of patents in this class: 3375
10-year publication summary
|
200
|
160
|
191
|
201
|
220
|
227
|
262
|
276
|
284
|
157
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kaneka Corporation | 4525 |
141 |
| LG Chem, Ltd. | 17638 |
70 |
| Kureha Corporation | 1027 |
55 |
| Novamont S.p.A. | 354 |
52 |
| Toray Industries, Inc. | 6945 |
51 |
| Sumitomo Chemical Company, Limited | 9047 |
45 |
| BASF SE | 20915 |
44 |
| CJ Cheiljedang Corporation | 3423 |
43 |
| Kingfa SCI & Tech Co. Ltd. | 639 |
39 |
| Teijin Limited | 1246 |
35 |
| Kao Corporation | 4962 |
34 |
| 3m Innovative Properties Company | 17819 |
31 |
| Kimberly-clark Worldwide, Inc. | 5498 |
31 |
| SK Chemicals Co., Ltd. | 613 |
31 |
| Ethicon, Inc. | 1179 |
30 |
| LG Hausys, Ltd. | 822 |
28 |
| Danimer Ipco, LLC | 93 |
25 |
| Ticona LLC | 593 |
23 |
| E. I. du Pont de Nemours and Company | 4071 |
21 |
| Mitsui Chemicals, Inc. | 3219 |
21 |
| Other owners | 2525 |