- All sections
- C - Chemistrymetallurgy
- C08F - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C08F 22/40 - Imides, e.g. cyclic imides
Patent holdings for IPC class C08F 22/40
Total number of patents in this class: 140
10-year publication summary
|
4
|
7
|
5
|
6
|
18
|
9
|
15
|
9
|
15
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Gas Chemical Company, Inc. | 3392 |
26 |
| DIC Corporation | 3720 |
16 |
| Nippon Kayaku Kabushiki Kaisha | 1433 |
8 |
| FUJIFILM Corporation | 29082 |
6 |
| Panasonic Intellectual Property Management Co., Ltd. | 30506 |
5 |
| Daicel Corporation | 2292 |
5 |
| Sekisui Chemical Co., Ltd. | 3351 |
4 |
| Canon Kabushiki Kaisha | 7008 |
4 |
| Idemitsu Kosan Co., Ltd. | 4129 |
3 |
| Huntsman Advanced Materials Americas LLC | 141 |
3 |
| Nissan Chemical Industries, Ltd. | 1738 |
3 |
| Tokyo Ohka Kogyo Co., Ltd. | 1515 |
3 |
| Resonac Corporation | 2589 |
3 |
| LG Chem, Ltd. | 17464 |
2 |
| Living Proof, Inc. | 124 |
2 |
| Nektar Therapeutics | 440 |
2 |
| Tosoh Corporation | 1243 |
2 |
| Nissan Chemical Corporation | 1934 |
2 |
| Samsung Electronics Co., Ltd. | 142124 |
1 |
| General Electric Company | 17076 |
1 |
| Other owners | 39 |