- All sections
- C - Chemistrymetallurgy
- 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: 97
10-year publication summary
|
7
|
3
|
6
|
11
|
5
|
6
|
11
|
9
|
5
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Zeon Corporation | 4079 |
24 |
| LG Chem, Ltd. | 17594 |
10 |
| Denka Company Limited | 2561 |
6 |
| FUJIFILM Corporation | 29295 |
3 |
| Nippon a & L Inc. | 86 |
3 |
| JSR Corporation | 2514 |
2 |
| Hannanotech Co., Ltd. | 16 |
2 |
| Kureha Corporation | 1022 |
2 |
| Matsumoto Yushi-Seiyaku Co., Ltd. | 181 |
2 |
| Toagosei Co., Ltd. | 973 |
2 |
| University of Washington | 2317 |
2 |
| Polybatt Materials Co., Ltd. | 5 |
2 |
| TDK Corporation | 6702 |
1 |
| Bridgestone Corporation | 7248 |
1 |
| Showa Denko K.K. | 2258 |
1 |
| Toray Industries, Inc. | 6930 |
1 |
| Mitsui Chemicals, Inc. | 3222 |
1 |
| Mitsubishi Chemical Corporation | 4489 |
1 |
| Henkel AG & Co. KGaA | 10525 |
1 |
| Adeka Corporation | 1363 |
1 |
| Other owners | 29 |