- All sections
- C - Chemistrymetallurgy
- C08F - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C08F 232/08 - Copolymers of cyclic compounds containing no unsaturated aliphatic radicals in a side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic ring system having condensed rings
Patent holdings for IPC class C08F 232/08
Total number of patents in this class: 329
10-year publication summary
|
14
|
22
|
16
|
17
|
28
|
21
|
18
|
28
|
30
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Promerus, LLC | 152 |
29 |
| Sumitomo Bakelite Co., Ltd. | 1517 |
28 |
| Mitsui Chemicals, Inc. | 3224 |
19 |
| Zeon Corporation | 4127 |
18 |
| ExxonMobil Chemical Patents Inc. | 3880 |
14 |
| Polyplastics Co., Ltd. | 614 |
11 |
| LG Chem, Ltd. | 17778 |
10 |
| Kolon Industries, Inc. | 1751 |
9 |
| FUJIFILM Corporation | 30126 |
8 |
| Shin-Etsu Chemical Co., Ltd. | 5887 |
8 |
| JSR Corporation | 2557 |
7 |
| Maruzen Petrochemical Co., Ltd. | 185 |
7 |
| Sumitomo Chemical Company, Limited | 9064 |
6 |
| Hanwha Solutions Corporation | 999 |
5 |
| Massachusetts Institute of Technology | 10190 |
4 |
| DONGWOO FINE-CHEM Co., Ltd. | 1401 |
4 |
| Rain Carbon Germany GmbH | 61 |
4 |
| California Institute of Technology | 4018 |
3 |
| The Goodyear Tire & Rubber Company | 2382 |
3 |
| Daicel Corporation | 2443 |
3 |
| Other owners | 129 |