- All sections
- C - Chemistry; metallurgy
- C08F - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C08F 220/42 - Nitriles
Patent holdings for IPC class C08F 220/42
Total number of patents in this class: 95
10-year publication summary
|
5
|
7
|
3
|
6
|
11
|
5
|
6
|
10
|
9
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Zeon Corporation | 3854 |
24 |
| LG Chem, Ltd. | 17205 |
10 |
| Denka Company Limited | 2189 |
5 |
| FUJIFILM Corporation | 27102 |
3 |
| Nippon a & L Inc. | 83 |
3 |
| JSR Corporation | 2476 |
2 |
| Hannanotech Co., Ltd. | 15 |
2 |
| Kureha Corporation | 1026 |
2 |
| Matsumoto Yushi-Seiyaku Co., Ltd. | 166 |
2 |
| Toagosei Co., Ltd. | 894 |
2 |
| University of Washington | 2157 |
2 |
| Polybatt Materials Co., Ltd. | 5 |
2 |
| 3m Innovative Properties Company | 18406 |
1 |
| Eastman Kodak Company | 3444 |
1 |
| TDK Corporation | 6306 |
1 |
| Bridgestone Corporation | 7067 |
1 |
| Showa Denko K.K. | 2539 |
1 |
| Toray Industries, Inc. | 6652 |
1 |
| Mitsui Chemicals, Inc. | 3134 |
1 |
| Mitsubishi Chemical Corporation | 4313 |
1 |
| Other owners | 28 |