- All sections
- C - Chemistrymetallurgy
- C08F - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C08F 297/04 - Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type polymerising vinyl aromatic monomers and conjugated dienes
Patent holdings for IPC class C08F 297/04
Total number of patents in this class: 677
10-year publication summary
|
36
|
58
|
57
|
65
|
60
|
49
|
45
|
30
|
29
|
35
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Zeon Corporation | 4115 |
99 |
| Kuraray Co., Ltd. | 3531 |
92 |
| Asahi Kasei Kabushiki Kaisha | 2710 |
51 |
| LG Chem, Ltd. | 17682 |
25 |
| INEOS Styrolution Group GmbH | 349 |
23 |
| Denka Company Limited | 2646 |
19 |
| Kraton Polymers U.S. LLC | 195 |
18 |
| Amyris, Inc. | 381 |
16 |
| Dynasol Elastomeros, S.A. de C.V. | 41 |
15 |
| Bridgestone Corporation | 7213 |
13 |
| 3m Innovative Properties Company | 17752 |
12 |
| Compagnie Generale des Etablissements Michelin | 4789 |
11 |
| BASF SE | 21080 |
10 |
| Asahi Kasei Chemicals Corporation | 635 |
10 |
| Bank of America, N.A. | 319 |
9 |
| The Yokohama Rubber Co., Ltd. | 4085 |
8 |
| Nippon Soda Co., Ltd. | 890 |
8 |
| Kraton Corporation | 62 |
8 |
| JSR Corporation | 2535 |
7 |
| China Petroleum & Chemical Corporation | 1939 |
7 |
| Other owners | 216 |