- All sections
- C - Chemistrymetallurgy
- C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K 5/3477 - Six-membered rings
Patent holdings for IPC class C08K 5/3477
Total number of patents in this class: 243
10-year publication summary
|
12
|
19
|
23
|
17
|
25
|
12
|
14
|
12
|
9
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bridgestone Corporation | 7233 |
13 |
| Sumitomo Bakelite Co., Ltd. | 1498 |
13 |
| Adeka Corporation | 1366 |
11 |
| Otsuka Chemical Co., Ltd. | 289 |
11 |
| The Yokohama Rubber Co., Ltd. | 4044 |
10 |
| Daicel Corporation | 2354 |
9 |
| Polyplastics Co., Ltd. | 603 |
8 |
| Sumitomo Electric Industries, Ltd. | 15535 |
7 |
| 3m Innovative Properties Company | 17820 |
6 |
| Sumitomo Rubber Industries, Ltd. | 4657 |
6 |
| Kaneka Corporation | 4544 |
6 |
| Shin-Etsu Polymer Co., Ltd. | 457 |
6 |
| BASF SE | 20945 |
5 |
| Panasonic Intellectual Property Management Co., Ltd. | 31598 |
5 |
| Dai Nippon Printing Co., Ltd. | 4098 |
5 |
| Sumitomo Electric Fine Polymer, Inc. | 201 |
5 |
| International Business Machines Corporation | 61344 |
4 |
| FUJIFILM Corporation | 29458 |
4 |
| Ecolab USA Inc. | 5505 |
4 |
| Henkel AG & Co. KGaA | 10588 |
3 |
| Other owners | 102 |