- All sections
- C - Chemistry; metallurgy
- C08C - Treatment or chemical modification of rubbers
- C08C 19/20 - Incorporating sulfur atoms into the molecule
Patent holdings for IPC class C08C 19/20
Total number of patents in this class: 188
10-year publication summary
|
19
|
15
|
8
|
14
|
12
|
14
|
6
|
18
|
13
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bridgestone Corporation | 7067 |
19 |
| Arlanxeo Deutschland GmbH | 302 |
13 |
| LG Chem, Ltd. | 17205 |
9 |
| Denka Company Limited | 2189 |
8 |
| The Goodyear Tire & Rubber Company | 2569 |
7 |
| Compagnie Generale des Etablissements Michelin | 4450 |
7 |
| Centre National de La Recherche Scientifique | 9632 |
5 |
| Lanxess Deutschland GmbH | 1104 |
5 |
| Trinseo Europe GmbH | 317 |
5 |
| Eneos Materials Corporation | 141 |
5 |
| Continental Reifen Deutschland GmbH | 2324 |
4 |
| Denki Kagaku Kogyo Kabushiki Kaisha | 680 |
4 |
| Total Raffinage Marketing | 154 |
4 |
| Dow Global Technologies LLC | 10147 |
3 |
| Compagnie générale des établissements Michelin SCA | 2477 |
3 |
| Michelin Recherche et Technique S.A. | 2328 |
3 |
| The Yokohama Rubber Co., Ltd. | 3929 |
3 |
| Centre National de La Recherche Scientifique (cnrs) | 3191 |
3 |
| Flexsys Holdings, Inc. | 22 |
3 |
| Sumitomo Chemical Company, Limited | 8808 |
2 |
| Other owners | 73 |