- 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: 2641
10-year publication summary
|
164
|
138
|
139
|
163
|
146
|
189
|
151
|
150
|
141
|
93
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Chemical Company, Limited | 9086 |
93 |
| Toray Industries, Inc. | 7002 |
85 |
| Toyobo Co., Ltd. | 2534 |
70 |
| FUJIFILM Corporation | 29702 |
60 |
| BASF SE | 21039 |
50 |
| Kaneka Corporation | 4610 |
46 |
| Mitsubishi Chemical Corporation | 4583 |
38 |
| Kao Corporation | 4982 |
35 |
| Mitsubishi Gas Chemical Company, Inc. | 3485 |
35 |
| DIC Corporation | 3821 |
32 |
| Eastman Chemical Company | 2208 |
32 |
| Polyplastics Co., Ltd. | 608 |
29 |
| Kingfa SCI & Tech Co. Ltd. | 648 |
26 |
| LG Chem, Ltd. | 17680 |
23 |
| PPG Industries Ohio, Inc. | 3439 |
22 |
| Nisshinbo Chemical Inc. | 139 |
22 |
| SABIC Global Technologies B.V. | 4374 |
22 |
| Kimberly-clark Worldwide, Inc. | 5443 |
21 |
| Dow Global Technologies LLC | 10448 |
20 |
| E. I. du Pont de Nemours and Company | 3975 |
18 |
| Other owners | 1862 |