Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7308971 | Turn plate and slip plate centering and locking mechanism | Peter N. Liebetreu, Michael Olsen | 2007-12-18 |
| 6189432 | Automotive lift hydraulic fluid control circuit | Nicholas J. Colarelli, III, Michael Olsen | 2001-02-20 |
| 5460246 | Articulated aerial lift | William E. Burch, Raymond Fritel | 1995-10-24 |
| 5299658 | Automatic hydraulic lift circuit | Joseph Henry Cox, Richard A. Killeen, Brian K. Hierholzer, Michael Olsen | 1994-04-05 |