- All sections
- C - Chemistry; metallurgy
- C08F - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C08F 20/30 - Esters containing oxygen in addition to the carboxy oxygen containing aromatic rings in the alcohol moiety
Patent holdings for IPC class C08F 20/30
Total number of patents in this class: 269
10-year publication summary
|
12
|
21
|
21
|
30
|
29
|
19
|
16
|
8
|
15
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 27102 |
53 |
| DIC Corporation | 3597 |
21 |
| Nissan Chemical Industries, Ltd. | 1822 |
20 |
| Sumitomo Chemical Company, Limited | 8808 |
13 |
| JNC Corporation | 1527 |
12 |
| JNC Petrochemical Corporation | 425 |
10 |
| Mitsubishi Gas Chemical Company, Inc. | 3188 |
6 |
| University of Hyogo | 94 |
6 |
| Adeka Corporation | 1333 |
5 |
| Nippon Kayaku Kabushiki Kaisha | 1400 |
5 |
| Tokyo Ohka Kogyo Co., Ltd. | 1481 |
4 |
| Zeon Corporation | 3854 |
4 |
| Sharp Kabushiki Kaisha | 18957 |
4 |
| 3m Innovative Properties Company | 18406 |
3 |
| Asahi Glass Company, Limited | 2985 |
3 |
| Mitsui Chemicals, Inc. | 3134 |
3 |
| Johnson & Johnson Surgical Vision, Inc. | 968 |
3 |
| Specialty Operations France | 563 |
3 |
| LG Chem, Ltd. | 17205 |
2 |
| Hitachi Chemical Company, Ltd. | 2455 |
2 |
| Other owners | 87 |