- All sections
- C - Chemistry; metallurgy
- 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: 124
10-year publication summary
|
5
|
4
|
7
|
5
|
6
|
18
|
9
|
15
|
9
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Gas Chemical Company, Inc. | 3188 |
22 |
| DIC Corporation | 3597 |
17 |
| Nippon Kayaku Kabushiki Kaisha | 1400 |
7 |
| FUJIFILM Corporation | 27102 |
6 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
5 |
| Daicel Corporation | 2128 |
5 |
| Idemitsu Kosan Co., Ltd. | 3995 |
3 |
| Huntsman Advanced Materials Americas LLC | 136 |
3 |
| Nissan Chemical Industries, Ltd. | 1822 |
3 |
| Sekisui Chemical Co., Ltd. | 3159 |
3 |
| Canon Kabushiki Kaisha | 6884 |
3 |
| LG Chem, Ltd. | 17205 |
2 |
| Living Proof, Inc. | 129 |
2 |
| Nektar Therapeutics | 503 |
2 |
| Tosoh Corporation | 1127 |
2 |
| Nissan Chemical Corporation | 1725 |
2 |
| Resonac Corporation | 2233 |
2 |
| Samsung Electronics Co., Ltd. | 131630 |
1 |
| General Electric Company | 18133 |
1 |
| Baker Hughes Incorporated | 5689 |
1 |
| Other owners | 32 |