- All sections
- C - Chemistry; metallurgy
- C08C - Treatment or chemical modification of rubbers
- C08C 1/04 - Purifying; Deproteinising
Patent holdings for IPC class C08C 1/04
Total number of patents in this class: 110
10-year publication summary
|
13
|
10
|
15
|
8
|
6
|
6
|
9
|
9
|
4
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bridgestone Corporation | 7067 |
38 |
| Sumitomo Rubber Industries, Ltd. | 4421 |
10 |
| Budev B.V. | 7 |
5 |
| Versalis S.P.A. | 511 |
4 |
| Compagnie Generale des Etablissements Michelin | 4450 |
4 |
| Kultevat, Inc. | 12 |
3 |
| Merck Patent GmbH | 5909 |
2 |
| Toyo Tire & Rubber Co., Ltd. | 631 |
2 |
| Yulex Corporation | 14 |
2 |
| Zeon Corporation | 3854 |
2 |
| Zoz GmbH | 9 |
2 |
| F. Hoffmann-La Roche AG | 7958 |
1 |
| Roche Diagnostics GmbH | 2745 |
1 |
| Nike, Inc. | 13075 |
1 |
| Nike International Ltd. | 769 |
1 |
| Continental Reifen Deutschland GmbH | 2324 |
1 |
| The Goodyear Tire & Rubber Company | 2569 |
1 |
| Showa Denko K.K. | 2539 |
1 |
| Aalto University Foundation | 253 |
1 |
| Association pour les Transferts de Technologies du Mans | 16 |
1 |
| Other owners | 27 |