- All sections
- C - Chemistry; metallurgy
- C08C - Treatment or chemical modification of rubbers
- C08C 3/02 - Purification
Patent holdings for IPC class C08C 3/02
Total number of patents in this class: 47
10-year publication summary
|
6
|
4
|
7
|
7
|
4
|
5
|
2
|
1
|
2
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bridgestone Corporation | 7067 |
16 |
| Sumitomo Rubber Industries, Ltd. | 4421 |
5 |
| Compagnie Generale des Etablissements Michelin | 4450 |
5 |
| Zeon Corporation | 3854 |
4 |
| Continental Reifen Deutschland GmbH | 2324 |
2 |
| Compagnie générale des établissements Michelin SCA | 2477 |
2 |
| Arlanxeo Deutschland GmbH | 302 |
2 |
| Budev B.V. | 7 |
2 |
| LG Chem, Ltd. | 17205 |
1 |
| The Goodyear Tire & Rubber Company | 2569 |
1 |
| Kaneka Corporation | 4445 |
1 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4569 |
1 |
| List Holding AG | 42 |
1 |
| Sekisui Plastics Co., Ltd. | 345 |
1 |
| Ube Industries, Ltd. | 921 |
1 |
| Versalis S.P.A. | 511 |
1 |
| Qingdao University of Science & Technology | 25 |
1 |
| Other owners | 0 |