- All sections
- C - Chemistrymetallurgy
- C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K 5/3415 - Five-membered rings
Patent holdings for IPC class C08K 5/3415
Total number of patents in this class: 598
10-year publication summary
|
43
|
41
|
58
|
49
|
49
|
58
|
53
|
43
|
46
|
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. | 3343 |
46 |
| FUJIFILM Corporation | 28805 |
39 |
| Bridgestone Corporation | 7147 |
27 |
| Panasonic Intellectual Property Management Co., Ltd. | 29733 |
15 |
| BASF SE | 20432 |
14 |
| Hitachi Chemical Company, Ltd. | 2387 |
11 |
| Resonac Corporation | 2423 |
10 |
| Seiko Epson Corporation | 18989 |
9 |
| Mitsubishi Chemical Corporation | 4447 |
9 |
| LG Chem, Ltd. | 17639 |
8 |
| Sumitomo Chemical Company, Limited | 8988 |
8 |
| Zeon Corporation | 3995 |
8 |
| Sekisui Chemical Co., Ltd. | 3308 |
7 |
| Agc, Inc. | 4470 |
7 |
| Nissan Chemical Corporation | 1882 |
7 |
| Henkel AG & Co. KGaA | 10351 |
6 |
| Namics Corporation | 422 |
6 |
| Nippon Kayaku Kabushiki Kaisha | 1429 |
6 |
| Xerox Corporation | 7076 |
5 |
| Mitsui Chemicals, Inc. | 3187 |
5 |
| Other owners | 345 |