- All sections
- C - Chemistrymetallurgy
- C08F - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C08F 222/40 - Imides, e.g. cyclic imides
Patent holdings for IPC class C08F 222/40
Total number of patents in this class: 346
10-year publication summary
|
6
|
19
|
29
|
31
|
29
|
23
|
37
|
26
|
30
|
17
|
| 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. | 3466 |
23 |
| LG Chem, Ltd. | 17639 |
22 |
| Nippon Kayaku Kabushiki Kaisha | 1436 |
11 |
| Panasonic Intellectual Property Management Co., Ltd. | 31515 |
10 |
| Denka Company Limited | 2585 |
10 |
| Nissan Chemical Corporation | 2028 |
10 |
| Evonik Operations GmbH | 4117 |
9 |
| Asahi Kasei Kabushiki Kaisha | 2677 |
8 |
| Nippon Shokubai Co., Ltd. | 1507 |
7 |
| Sumitomo Chemical Company, Limited | 9049 |
6 |
| California Institute of Technology | 3975 |
6 |
| Kaneka Corporation | 4529 |
6 |
| Terumo Kabushiki Kaisha | 5546 |
6 |
| Korea Kumho Petrochemical Co., Ltd. | 191 |
5 |
| Nissan Chemical Industries, Ltd. | 1716 |
5 |
| Resonac Corporation | 2832 |
5 |
| Samsung Electronics Co., Ltd. | 146534 |
4 |
| 3m Innovative Properties Company | 17819 |
4 |
| Eastman Kodak Company | 2886 |
4 |
| JSR Corporation | 2527 |
4 |
| Other owners | 181 |