Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11319753 | Method of forming stators for downhole motors | Gunnar Michaelis, Carsten Hohl, Erik Bartscherer, Harald Grimmer, Christian Fulda +2 more | 2022-05-03 |
| 11192211 | Mud motor stators and pumps and method of making | Christoph Wangenheim, Frederik Goeing | 2021-12-07 |
| 10920493 | Method of forming stators for downhole motors | Gunnar Michaelis, Carsten Hohl, Erik Bartscherer, Harald Grimmer, Christian Fulda +2 more | 2021-02-16 |
| 10527037 | Mud motor stators and pumps and method of making | Christoph Wangenheim, Frederik Goeing | 2020-01-07 |
| 9976227 | Electrochemical machining method for rotors or stators for moineau pumps | Christoph Wangenheim, Gunnar Michaelis, Thomas Uhlenberg, Hans Hendrik Wolters | 2018-05-22 |