- All sections
- C - Chemistry; metallurgy
- 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: 314
10-year publication summary
|
18
|
6
|
19
|
29
|
31
|
29
|
24
|
35
|
24
|
9
|
| 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 |
19 |
| LG Chem, Ltd. | 17205 |
17 |
| Denka Company Limited | 2189 |
10 |
| Nippon Kayaku Kabushiki Kaisha | 1400 |
9 |
| Asahi Kasei Kabushiki Kaisha | 2429 |
8 |
| Nissan Chemical Corporation | 1725 |
8 |
| Evonik Operations GmbH | 3879 |
8 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
7 |
| Sumitomo Chemical Company, Limited | 8808 |
6 |
| California Institute of Technology | 3884 |
6 |
| Terumo Kabushiki Kaisha | 5216 |
6 |
| Nippon Shokubai Co., Ltd. | 1487 |
6 |
| Nissan Chemical Industries, Ltd. | 1822 |
6 |
| Kaneka Corporation | 4445 |
5 |
| Samsung Electronics Co., Ltd. | 131630 |
4 |
| 3m Innovative Properties Company | 18406 |
4 |
| Eastman Kodak Company | 3444 |
4 |
| DIC Corporation | 3597 |
4 |
| JX Nippon Oil & Energy Corporation | 1019 |
4 |
| Keio University | 1053 |
4 |
| Other owners | 169 |