Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10208702 | Method for producing a piston | Udo Rotmann, Juergen Friedrich | 2019-02-19 |
| 9782823 | Forging device for the production of a piston blank, and method for the production of the piston blank by means of said forging device | Roland Grunert, Juergen Friedrich, Timo Seng, Wolfgang Janisch | 2017-10-10 |