Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6609892 | Propeller hub | Michael J. Ewald, Philip James McGowan | 2003-08-26 |
| 6267634 | Propeller flare | Michael J. Ewald, Cy Werda | 2001-07-31 |
| D425473 | Propeller flare | Michael J. Ewald | 2000-05-23 |