- All sections
- C - Chemistrymetallurgy
- 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: 189
10-year publication summary
|
15
|
8
|
14
|
12
|
14
|
7
|
16
|
13
|
9
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bridgestone Corporation | 7211 |
15 |
| Arlanxeo Deutschland GmbH | 276 |
12 |
| LG Chem, Ltd. | 17704 |
9 |
| Denka Company Limited | 2662 |
8 |
| The Goodyear Tire & Rubber Company | 2443 |
7 |
| Compagnie Generale des Etablissements Michelin | 4811 |
7 |
| Continental Reifen Deutschland GmbH | 2468 |
6 |
| Centre National de La Recherche Scientifique | 10708 |
5 |
| Eneos Materials Corporation | 278 |
5 |
| Denki Kagaku Kogyo Kabushiki Kaisha | 616 |
4 |
| Korea Kumho Petrochemical Co., Ltd. | 189 |
4 |
| Total Raffinage Marketing | 153 |
4 |
| Dow Global Technologies LLC | 10587 |
3 |
| Compagnie générale des établissements Michelin SCA | 2608 |
3 |
| Michelin Recherche et Technique S.A. | 2139 |
3 |
| The Yokohama Rubber Co., Ltd. | 4092 |
3 |
| Lanxess Deutschland GmbH | 1108 |
3 |
| Trinseo Europe GmbH | 313 |
3 |
| LifeStyles Healthcare Pte Ltd. | 204 |
3 |
| Centre National de La Recherche Scientifique (cnrs) | 3084 |
3 |
| Other owners | 79 |