- All sections
- C - Chemistry; metallurgy
- C08G - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C08G 63/42 - Cyclic ethers; Cyclic carbonates; Cyclic sulfites; Cyclic orthoesters
Patent holdings for IPC class C08G 63/42
Total number of patents in this class: 143
10-year publication summary
|
13
|
7
|
8
|
10
|
12
|
19
|
18
|
19
|
6
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Natural Fiber Welding, Inc. | 107 |
15 |
| SK Chemicals Co., Ltd. | 568 |
10 |
| Evonik Operations GmbH | 3879 |
6 |
| Mitsubishi Chemical Corporation | 4313 |
5 |
| Roquette Freres | 1002 |
5 |
| Covestro Deutschland AG | 2429 |
4 |
| Segetis, Inc. | 39 |
4 |
| BASF SE | 19740 |
3 |
| ExxonMobil Chemical Patents Inc. | 4286 |
3 |
| Dow Global Technologies LLC | 10147 |
3 |
| Ecole Polytechnique Federale de Lausanne (epfl) | 1434 |
3 |
| Zhejiang University | 2619 |
3 |
| Allnex Netherlands B.V. | 210 |
3 |
| LG Chem, Ltd. | 17205 |
2 |
| Shell Internationale Research Maatschappij B.V. | 3792 |
2 |
| International Business Machines Corporation | 60644 |
2 |
| DSM IP Assets B.V. | 5856 |
2 |
| Rohm and Haas Company | 2805 |
2 |
| PPG Industries Ohio, Inc. | 3430 |
2 |
| Akzo Nobel Coatings International B.V. | 2185 |
2 |
| Other owners | 62 |