- All sections
- C - Chemistrymetallurgy
- 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: 50
10-year publication summary
|
7
|
6
|
4
|
5
|
2
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2
|
2
|
3
|
3
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bridgestone Corporation | 7234 |
20 |
| Compagnie Generale des Etablissements Michelin | 4885 |
6 |
| Sumitomo Rubber Industries, Ltd. | 4713 |
5 |
| Zeon Corporation | 4117 |
3 |
| Continental Reifen Deutschland GmbH | 2506 |
2 |
| Compagnie générale des établissements Michelin SCA | 2652 |
2 |
| Budev B.V. | 6 |
2 |
| LG Chem, Ltd. | 17822 |
1 |
| The Goodyear Tire & Rubber Company | 2385 |
1 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 5172 |
1 |
| Denka Company Limited | 2700 |
1 |
| INEOS Styrolution Group GmbH | 356 |
1 |
| List Holding AG | 39 |
1 |
| Sekisui Plastics Co., Ltd. | 323 |
1 |
| Ube Industries, Ltd. | 790 |
1 |
| Versalis S.P.A. | 531 |
1 |
| Qingdao University of Science & Technology | 29 |
1 |
| Other owners | 0 |