- All sections
- C - Chemistrymetallurgy
- C08G - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C08G 63/81 - Preparation processes using solvents
Patent holdings for IPC class C08G 63/81
Total number of patents in this class: 145
10-year publication summary
|
6
|
6
|
9
|
15
|
6
|
14
|
18
|
9
|
26
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Natural Fiber Welding, Inc. | 95 |
20 |
| Momentive Performance Materials Inc. | 915 |
5 |
| The Secant Group, LLC | 106 |
5 |
| Avantium Knowledge Centre B.V. | 192 |
5 |
| Ricoh Company, Ltd. | 13283 |
4 |
| SWIMC, LLC | 2501 |
4 |
| ExxonMobil Chemical Patents Inc. | 3977 |
3 |
| Council of Scientific & Industrial Research | 1427 |
3 |
| Cyclics Corporation | 6 |
3 |
| Pharmathen S.A. | 162 |
3 |
| LG Chem, Ltd. | 17635 |
2 |
| Medtronic, Inc. | 9817 |
2 |
| Kaneka Corporation | 4534 |
2 |
| Arkema France | 4154 |
2 |
| Iowa State University Research Foundation, Inc. | 777 |
2 |
| Liquid Thermo Plastics, Inc. | 3 |
2 |
| Novomer, Inc. | 212 |
2 |
| SK Chemicals Co., Ltd. | 614 |
2 |
| Sulzer Management AG | 667 |
2 |
| Tubitak | 113 |
2 |
| Other owners | 70 |