- All sections
- C - Chemistry; metallurgy
- C08F - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C08F 220/30 - Esters containing oxygen in addition to the carboxy oxygen containing aromatic rings in the alcohol moiety
Patent holdings for IPC class C08F 220/30
Total number of patents in this class: 671
10-year publication summary
|
58
|
56
|
69
|
72
|
60
|
66
|
52
|
53
|
47
|
16
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 27102 |
78 |
| LG Chem, Ltd. | 17205 |
51 |
| Shin-Etsu Chemical Co., Ltd. | 5132 |
51 |
| Nissan Chemical Industries, Ltd. | 1822 |
28 |
| DIC Corporation | 3597 |
25 |
| 3m Innovative Properties Company | 18406 |
15 |
| Nissan Chemical Corporation | 1725 |
14 |
| Sumitomo Chemical Company, Limited | 8808 |
13 |
| JSR Corporation | 2476 |
13 |
| Tokyo Ohka Kogyo Co., Ltd. | 1481 |
13 |
| Merck Patent GmbH | 5909 |
9 |
| Alcon, Inc. | 4899 |
9 |
| Transitions Optical, Inc. | 317 |
8 |
| Canon Inc. | 36841 |
7 |
| Asahi Glass Company, Limited | 2985 |
6 |
| Rohm and Haas Electronic Materials LLC | 637 |
6 |
| BASF SE | 19740 |
5 |
| Samsung SDI Co., Ltd. | 6671 |
5 |
| Benz Research and Development Corporation | 47 |
5 |
| Dongjin Semichem Co., Ltd. | 438 |
5 |
| Other owners | 305 |