- All sections
- C - Chemistrymetallurgy
- C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K 3/04 - Carbon
Patent holdings for IPC class C08K 3/04
Total number of patents in this class: 10018
10-year publication summary
|
704
|
801
|
965
|
878
|
848
|
781
|
774
|
748
|
682
|
463
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bridgestone Corporation | 7274 |
483 |
| The Yokohama Rubber Co., Ltd. | 4114 |
238 |
| Compagnie Generale des Etablissements Michelin | 4975 |
209 |
| Sumitomo Rubber Industries, Ltd. | 4736 |
188 |
| Zeon Corporation | 4167 |
173 |
| Compagnie générale des établissements Michelin SCA | 2735 |
171 |
| LG Chem, Ltd. | 17956 |
166 |
| Bridgestone Americas Tire Operations, LLC | 1130 |
108 |
| Sekisui Chemical Co., Ltd. | 3638 |
98 |
| Borealis AG | 2740 |
90 |
| The Goodyear Tire & Rubber Company | 2385 |
82 |
| Sumitomo Chemical Company, Limited | 8969 |
81 |
| Dow Global Technologies LLC | 11008 |
81 |
| Cabot Corporation | 544 |
71 |
| BASF SE | 21320 |
68 |
| Daikin Industries, Ltd. | 10513 |
68 |
| Kuraray Co., Ltd. | 3601 |
68 |
| NOK Corporation | 2316 |
60 |
| SHPP Global Technologies B.V. | 1105 |
60 |
| Sumitomo Riko Company Limited | 1155 |
58 |
| Other owners | 7397 |