Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6015278 | Vane machine, having a controlled pressure acting on the vane ends | Al Key, Gregory D. Lemke, Ronald Schilling | 2000-01-18 |
| 5961307 | Pressure proportioning regulator valve and vane machine including same | Al Key, Gregory D. Lemke, Ronald Schilling | 1999-10-05 |