PR

Paul Roloff

HE Hunter Engineering: 3 patents #45 of 117Top 40%
Overall (All Time): #1,256,758 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
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