- All sections
- C - Chemistrymetallurgy
- C08G - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C08G 63/42 - Cyclic ethersCyclic carbonatesCyclic sulfitesCyclic orthoesters
Patent holdings for IPC class C08G 63/42
Total number of patents in this class: 148
10-year publication summary
|
7
|
8
|
10
|
12
|
19
|
19
|
20
|
6
|
9
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Natural Fiber Welding, Inc. | 96 |
18 |
| SK Chemicals Co., Ltd. | 608 |
9 |
| Evonik Operations GmbH | 4073 |
6 |
| Mitsubishi Chemical Corporation | 4488 |
5 |
| Covestro Deutschland AG | 2742 |
4 |
| Ecole Polytechnique Federale de Lausanne (epfl) | 1536 |
4 |
| Roquette Freres | 1027 |
4 |
| Segetis, Inc. | 39 |
4 |
| BASF SE | 20874 |
3 |
| Dow Global Technologies LLC | 10385 |
3 |
| Zhejiang University | 3116 |
3 |
| Allnex Netherlands B.V. | 198 |
3 |
| Nissan Chemical Corporation | 1989 |
3 |
| The Procter & Gamble Company | 22043 |
2 |
| LG Chem, Ltd. | 17581 |
2 |
| Shell Internationale Research Maatschappij B.V. | 3553 |
2 |
| International Business Machines Corporation | 61144 |
2 |
| ExxonMobil Chemical Patents Inc. | 4016 |
2 |
| DSM IP Assets B.V. | 5601 |
2 |
| Rohm and Haas Company | 2916 |
2 |
| Other owners | 65 |