- All sections
- C - Chemistry; metallurgy
- C08C - Treatment or chemical modification of rubbers
- C08C 19/28 - Reaction with compounds containing carbon-to-carbon unsaturated bonds
Patent holdings for IPC class C08C 19/28
Total number of patents in this class: 136
10-year publication summary
|
12
|
13
|
7
|
14
|
7
|
8
|
6
|
2
|
4
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Zeon Corporation | 3854 |
13 |
| Kuraray Co., Ltd. | 3392 |
9 |
| Compagnie Generale des Etablissements Michelin | 4450 |
7 |
| Centre National de La Recherche Scientifique | 9632 |
6 |
| Michelin Recherche et Technique S.A. | 2328 |
5 |
| Bridgestone Corporation | 7067 |
4 |
| Bostik SA | 602 |
4 |
| Nippon Soda Co., Ltd. | 890 |
4 |
| Universite de Rennes 1 | 434 |
4 |
| LG Chem, Ltd. | 17205 |
3 |
| Sumitomo Chemical Company, Limited | 8808 |
3 |
| The Goodyear Tire & Rubber Company | 2569 |
3 |
| Compagnie générale des établissements Michelin SCA | 2477 |
3 |
| Amyris, Inc. | 368 |
3 |
| FINA Technology, Inc. | 571 |
3 |
| ZS Elastomers Co., Ltd | 34 |
3 |
| Dow Global Technologies Inc. | 1055 |
2 |
| Sumitomo Rubber Industries, Ltd. | 4421 |
2 |
| Arlanxeo Deutschland GmbH | 302 |
2 |
| Hanwha Total Petrochemical Co., Ltd. | 27 |
2 |
| Other owners | 51 |