- All sections
- C - Chemistrymetallurgy
- C08G - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C08G 65/04 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
Patent holdings for IPC class C08G 65/04
Total number of patents in this class: 92
10-year publication summary
|
8
|
5
|
5
|
3
|
5
|
4
|
7
|
7
|
2
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Idemitsu Kosan Co., Ltd. | 4224 |
5 |
| SK Innovation Co., Ltd. | 1343 |
5 |
| Henkel AG & Co. KGaA | 10584 |
3 |
| Tokuyama Corporation | 1394 |
3 |
| Sumitomo Chemical Company, Limited | 9049 |
2 |
| Dow Global Technologies LLC | 10349 |
2 |
| Kaneka Corporation | 4529 |
2 |
| Covestro Deutschland AG | 2754 |
2 |
| DIC Corporation | 3802 |
2 |
| ENI S.p.A. | 1260 |
2 |
| Hercules LLC | 223 |
2 |
| Meisei Chemical Works, Ltd | 15 |
2 |
| Nanjing Tech University | 255 |
2 |
| Universita degli Studi di Milano-bicocca | 154 |
2 |
| Vivimed Labs Europe Ltd. | 4 |
2 |
| Saudi Aramco Technologies Company | 109 |
2 |
| Agc, Inc. | 4861 |
2 |
| BASF SE | 20915 |
1 |
| LG Chem, Ltd. | 17639 |
1 |
| FUJIFILM Corporation | 29424 |
1 |
| Other owners | 47 |