- 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: 385
10-year publication summary
|
19
|
29
|
31
|
29
|
23
|
37
|
27
|
30
|
27
|
27
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Gas Chemical Company, Inc. | 3634 |
30 |
| LG Chem, Ltd. | 17956 |
24 |
| Nippon Kayaku Kabushiki Kaisha | 1463 |
14 |
| Panasonic Intellectual Property Management Co., Ltd. | 34335 |
12 |
| Nissan Chemical Corporation | 2252 |
12 |
| Denka Company Limited | 2754 |
10 |
| Evonik Operations GmbH | 4395 |
9 |
| Sumitomo Chemical Company, Limited | 8969 |
8 |
| Asahi Kasei Kabushiki Kaisha | 2847 |
8 |
| Nippon Shokubai Co., Ltd. | 1536 |
8 |
| Resonac Corporation | 3624 |
8 |
| California Institute of Technology | 4037 |
6 |
| Kaneka Corporation | 4745 |
6 |
| Terumo Kabushiki Kaisha | 5849 |
6 |
| Korea Kumho Petrochemical Co., Ltd. | 196 |
5 |
| Kyoto University | 2926 |
5 |
| Nissan Chemical Industries, Ltd. | 1636 |
5 |
| Tosoh Corporation | 1418 |
5 |
| Samsung Electronics Co., Ltd. | 158605 |
4 |
| 3m Innovative Properties Company | 17459 |
4 |
| Other owners | 196 |