Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7520017 | Street sweeper recirculation flap | Michael S. Wilmo | 2009-04-21 |
| 7124463 | Conveyor lip for motorized street sweeper | Thomas P. Mathews, Michael H. Lenzmeier, Archie A. Weidner | 2006-10-24 |
| 7086118 | Street sweeper with vacuumized dust control | Steven L. Boomgaarden | 2006-08-08 |
| 6966097 | Street sweeper with dust control | Theodore Olsonoski | 2005-11-22 |
| 6428590 | Filter system for mobile debris collection machine | Ronald W. Lehman | 2002-08-06 |
| 6389641 | Dual mode debris pickup machine | Steven L. Boomgaarden, Michael L. Blehert | 2002-05-21 |
| 5996173 | Increased litter storage for vacuum trash collector | Ronald W. Lehman | 1999-12-07 |
| 5647093 | Sweeper with dual seal filter | Robert D. Hennessey, Timothy G. LaRocque, Terence A. Peterson | 1997-07-15 |
| 5455985 | Steerable side squeegees | Anthony Hamline, Steven L. Boomgaarden, Bryan Christensen | 1995-10-10 |