- All sections
- C - Chemistry; metallurgy
- C08L - Compositions of macromolecular compounds
- C08L 7/00 - Compositions of natural rubber
Patent holdings for IPC class C08L 7/00
Total number of patents in this class: 2254
10-year publication summary
|
187
|
175
|
190
|
262
|
260
|
232
|
207
|
167
|
185
|
50
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bridgestone Corporation | 7067 |
388 |
| Compagnie Generale des Etablissements Michelin | 4450 |
226 |
| The Yokohama Rubber Co., Ltd. | 3929 |
158 |
| Sumitomo Rubber Industries, Ltd. | 4421 |
151 |
| Compagnie générale des établissements Michelin SCA | 2477 |
122 |
| Michelin Recherche et Technique S.A. | 2328 |
99 |
| Bridgestone Americas Tire Operations, LLC | 990 |
65 |
| Continental Reifen Deutschland GmbH | 2324 |
58 |
| Pirelli Tyre S.p.A. | 1832 |
44 |
| The Goodyear Tire & Rubber Company | 2569 |
43 |
| Kuraray Co., Ltd. | 3392 |
38 |
| Toyo Tire Corporation | 943 |
33 |
| ExxonMobil Chemical Patents Inc. | 4286 |
25 |
| Sumitomo Riko Company Limited | 962 |
24 |
| Otsuka Chemical Co., Ltd. | 286 |
19 |
| Toyo Tire & Rubber Co., Ltd. | 631 |
18 |
| Amyris, Inc. | 368 |
17 |
| Societe de Technologie Michelin | 692 |
15 |
| Bridgestone Europe NV/SA | 240 |
14 |
| Sumitomo Chemical Company, Limited | 8808 |
13 |
| Other owners | 684 |