Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10604721 | Process for the preparation of polyurea-thickened lignin derivative-based lubricating greases, such lubricant greases and use thereof | Thomas Litters, Florian Hahn, Hans Jürgen Erkel | 2020-03-31 |