- All sections
- C - Chemistrymetallurgy
- 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: 286
10-year publication summary
|
21
|
30
|
29
|
20
|
16
|
8
|
15
|
10
|
6
|
18
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 30516 |
56 |
| Nissan Chemical Industries, Ltd. | 1643 |
20 |
| DIC Corporation | 3965 |
18 |
| Sumitomo Chemical Company, Limited | 8968 |
14 |
| JNC Corporation | 1548 |
11 |
| JNC Petrochemical Corporation | 328 |
9 |
| Mitsubishi Gas Chemical Company, Inc. | 3624 |
7 |
| Nissan Chemical Corporation | 2229 |
7 |
| University of Hyogo | 96 |
6 |
| Mitsubishi Chemical Corporation | 4723 |
5 |
| Nippon Kayaku Kabushiki Kaisha | 1454 |
5 |
| Tokyo Ohka Kogyo Co., Ltd. | 1563 |
5 |
| Adeka Corporation | 1379 |
4 |
| Align Technology, Inc. | 2291 |
4 |
| Zeon Corporation | 4151 |
4 |
| Sharp Kabushiki Kaisha | 18523 |
4 |
| 3m Innovative Properties Company | 17481 |
3 |
| Mitsui Chemicals, Inc. | 3242 |
3 |
| Shijiazhuang Chengzhi Yonghua Display Material Co., Ltd. | 205 |
3 |
| Johnson & Johnson Surgical Vision, Inc. | 940 |
3 |
| Other owners | 95 |