- All sections
- C - Chemistrymetallurgy
- C08L - Compositions of macromolecular compounds
- C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
Patent holdings for IPC class C08L 67/00
Total number of patents in this class: 2638
10-year publication summary
|
170
|
145
|
149
|
176
|
153
|
200
|
161
|
152
|
143
|
75
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Chemical Company, Limited | 9046 |
91 |
| Toray Industries, Inc. | 6936 |
86 |
| Toyobo Co., Ltd. | 2494 |
70 |
| FUJIFILM Corporation | 29367 |
60 |
| BASF SE | 20933 |
50 |
| Kaneka Corporation | 4522 |
47 |
| Mitsubishi Chemical Corporation | 4507 |
38 |
| Kao Corporation | 4964 |
35 |
| Mitsubishi Gas Chemical Company, Inc. | 3465 |
35 |
| Eastman Chemical Company | 2217 |
32 |
| DIC Corporation | 3794 |
31 |
| Polyplastics Co., Ltd. | 603 |
27 |
| Kingfa SCI & Tech Co. Ltd. | 635 |
26 |
| LG Chem, Ltd. | 17632 |
22 |
| Nisshinbo Chemical Inc. | 138 |
22 |
| SABIC Global Technologies B.V. | 4341 |
22 |
| Kimberly-clark Worldwide, Inc. | 5496 |
21 |
| Dow Global Technologies LLC | 10363 |
21 |
| PPG Industries Ohio, Inc. | 3455 |
21 |
| E. I. du Pont de Nemours and Company | 4082 |
18 |
| Other owners | 1863 |