- All sections
- C - Chemistrymetallurgy
- 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: 2700
10-year publication summary
|
190
|
262
|
260
|
233
|
210
|
173
|
186
|
194
|
182
|
142
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bridgestone Corporation | 7275 |
457 |
| Compagnie Generale des Etablissements Michelin | 4983 |
262 |
| The Yokohama Rubber Co., Ltd. | 4107 |
180 |
| Sumitomo Rubber Industries, Ltd. | 4733 |
158 |
| Compagnie générale des établissements Michelin SCA | 2759 |
141 |
| Michelin Recherche et Technique S.A. | 2076 |
98 |
| Bridgestone Americas Tire Operations, LLC | 1134 |
82 |
| Continental Reifen Deutschland GmbH | 2545 |
76 |
| The Goodyear Tire & Rubber Company | 2378 |
58 |
| Pirelli Tyre S.p.A. | 1967 |
54 |
| Toyo Tire Corporation | 1060 |
51 |
| Kuraray Co., Ltd. | 3616 |
41 |
| Sumitomo Riko Company Limited | 1176 |
32 |
| ExxonMobil Chemical Patents Inc. | 3759 |
27 |
| Otsuka Chemical Co., Ltd. | 279 |
22 |
| Bridgestone Europe NV/SA | 402 |
20 |
| Sennics Co., Ltd. | 102 |
19 |
| Toyo Tire & Rubber Co., Ltd. | 472 |
18 |
| Amyris, Inc. | 371 |
17 |
| Societe de Technologie Michelin | 501 |
15 |
| Other owners | 872 |