- 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: 172
10-year publication summary
|
6
|
10
|
18
|
5
|
19
|
20
|
10
|
8
|
10
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 30210 |
14 |
| DIC Corporation | 3902 |
13 |
| Toagosei Co., Ltd. | 995 |
7 |
| Zeon Corporation | 4114 |
7 |
| Sharp Kabushiki Kaisha | 18630 |
7 |
| JNC Corporation | 1530 |
6 |
| Panasonic Intellectual Property Management Co., Ltd. | 33462 |
5 |
| Nippon Steel Chemical & Material Co., Ltd. | 701 |
5 |
| Nissan Chemical Industries, Ltd. | 1666 |
4 |
| Sumitomo Chemical Company, Limited | 9044 |
3 |
| Idemitsu Kosan Co., Ltd. | 4225 |
3 |
| Mitsui Chemicals, Inc. | 3215 |
3 |
| JSR Corporation | 2540 |
3 |
| Denka Company Limited | 2698 |
3 |
| JNC Petrochemical Corporation | 327 |
3 |
| Mitsubishi Gas Chemical Company, Inc. | 3586 |
3 |
| Nippon Kayaku Kabushiki Kaisha | 1465 |
3 |
| Toyo Gosei Co., Ltd. | 107 |
3 |
| 3m Innovative Properties Company | 17511 |
2 |
| The Boeing Company | 20094 |
2 |
| Other owners | 73 |