- All sections
- C - Chemistrymetallurgy
- C08F - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C08F 20/20 - Esters of polyhydric alcohols or phenols
Patent holdings for IPC class C08F 20/20
Total number of patents in this class: 164
10-year publication summary
|
8
|
6
|
10
|
18
|
5
|
20
|
20
|
10
|
8
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 29350 |
14 |
| DIC Corporation | 3788 |
13 |
| Toagosei Co., Ltd. | 970 |
8 |
| Zeon Corporation | 4078 |
7 |
| Sharp Kabushiki Kaisha | 18764 |
7 |
| JNC Corporation | 1552 |
6 |
| Nippon Steel Chemical & Material Co., Ltd. | 647 |
5 |
| Nissan Chemical Industries, Ltd. | 1717 |
4 |
| Sumitomo Chemical Company, Limited | 9047 |
3 |
| Idemitsu Kosan Co., Ltd. | 4220 |
3 |
| Mitsui Chemicals, Inc. | 3218 |
3 |
| JSR Corporation | 2514 |
3 |
| Adeka Corporation | 1362 |
3 |
| Arkema France | 4104 |
3 |
| JNC Petrochemical Corporation | 400 |
3 |
| Mitsubishi Gas Chemical Company, Inc. | 3461 |
3 |
| Toyo Gosei Co., Ltd. | 108 |
3 |
| 3m Innovative Properties Company | 17849 |
2 |
| The Boeing Company | 20051 |
2 |
| Hitachi Chemical Company, Ltd. | 2352 |
2 |
| Other owners | 67 |