- 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: 2625
10-year publication summary
|
170
|
145
|
149
|
176
|
153
|
199
|
160
|
152
|
143
|
48
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Chemical Company, Limited | 8998 |
88 |
| Toray Industries, Inc. | 6867 |
86 |
| Toyobo Co., Ltd. | 2477 |
71 |
| FUJIFILM Corporation | 29188 |
60 |
| BASF SE | 20728 |
50 |
| Kaneka Corporation | 4488 |
45 |
| Mitsubishi Chemical Corporation | 4473 |
38 |
| Kao Corporation | 4939 |
35 |
| Mitsubishi Gas Chemical Company, Inc. | 3421 |
34 |
| Eastman Chemical Company | 2244 |
32 |
| DIC Corporation | 3742 |
30 |
| Polyplastics Co., Ltd. | 601 |
27 |
| Kingfa SCI & Tech Co. Ltd. | 601 |
25 |
| SABIC Global Technologies B.V. | 4273 |
22 |
| Kimberly-clark Worldwide, Inc. | 5501 |
21 |
| Dow Global Technologies LLC | 10328 |
21 |
| PPG Industries Ohio, Inc. | 3453 |
21 |
| Nisshinbo Chemical Inc. | 135 |
21 |
| LG Chem, Ltd. | 17538 |
20 |
| Mitsui Chemicals, Inc. | 3186 |
19 |
| Other owners | 1859 |