- 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: 612
10-year publication summary
|
43
|
41
|
58
|
49
|
49
|
58
|
54
|
43
|
47
|
23
|
| 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. | 3443 |
48 |
| FUJIFILM Corporation | 29251 |
39 |
| Bridgestone Corporation | 7244 |
27 |
| Panasonic Intellectual Property Management Co., Ltd. | 31022 |
17 |
| BASF SE | 20803 |
14 |
| Hitachi Chemical Company, Ltd. | 2357 |
11 |
| Resonac Corporation | 2702 |
11 |
| Seiko Epson Corporation | 19281 |
9 |
| Mitsubishi Chemical Corporation | 4492 |
9 |
| LG Chem, Ltd. | 17564 |
8 |
| Sumitomo Chemical Company, Limited | 9018 |
8 |
| Zeon Corporation | 4075 |
8 |
| Namics Corporation | 440 |
7 |
| Sekisui Chemical Co., Ltd. | 3378 |
7 |
| Agc, Inc. | 4760 |
7 |
| Nissan Chemical Corporation | 1982 |
7 |
| Mitsui Chemicals, Inc. | 3206 |
6 |
| Henkel AG & Co. KGaA | 10482 |
6 |
| Nippon Kayaku Kabushiki Kaisha | 1431 |
6 |
| Xerox Corporation | 7026 |
5 |
| Other owners | 352 |