- All sections
- C - Chemistrymetallurgy
- C08F - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C08F 136/08 - Isoprene
Patent holdings for IPC class C08F 136/08
Total number of patents in this class: 193
10-year publication summary
|
20
|
13
|
15
|
19
|
10
|
29
|
12
|
19
|
10
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bridgestone Corporation | 7199 |
18 |
| The Goodyear Tire & Rubber Company | 2569 |
16 |
| Versalis S.P.A. | 530 |
13 |
| Compagnie Generale des Etablissements Michelin | 4669 |
9 |
| Compagnie générale des établissements Michelin SCA | 2559 |
8 |
| Bridgestone Americas Tire Operations, LLC | 1059 |
8 |
| Sumitomo Rubber Industries, Ltd. | 4449 |
6 |
| Zeon Corporation | 4054 |
6 |
| INVISTA North America, LLC | 157 |
5 |
| INV Nylon Chemicals Americas, LLC | 179 |
5 |
| The Regents of the University of California | 19681 |
4 |
| Michelin Recherche et Technique S.A. | 2212 |
4 |
| Qingdao Institute of Bioenergy and BioProcess Technology, Chinese Academy of Sciences | 70 |
4 |
| LifeStyles Healthcare Pte Ltd. | 180 |
4 |
| Centre National de La Recherche Scientifique | 10202 |
3 |
| Danisco US Inc. | 1088 |
3 |
| Nutrition & Biosciences USA 4, Inc. | 219 |
3 |
| LG Chem, Ltd. | 17464 |
2 |
| Mitsui Chemicals, Inc. | 3188 |
2 |
| President and Fellows of Harvard College | 5905 |
2 |
| Other owners | 68 |