Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7120961 | Brush wear adjustment system and method | Robert Erko, Michael S. Wilmo, Scott Kroll | 2006-10-17 |
| 7086118 | Street sweeper with vacuumized dust control | Gregory J. Engel | 2006-08-08 |
| 6389641 | Dual mode debris pickup machine | Michael L. Blehert, Gregory J. Engel | 2002-05-21 |
| 6092261 | Storage system for vacuum pickup hose | — | 2000-07-25 |
| 5996174 | Hand control for manipulating vacuum pickup hose | Thomas P. Mathews | 1999-12-07 |
| 5983447 | Counterbalance system for pickup hose support | — | 1999-11-16 |
| 5943730 | Scrubber vac-fan seal | — | 1999-08-31 |
| 5901407 | Scrubbing machine with means for continuously cleaning a filter | — | 1999-05-11 |
| 5455985 | Steerable side squeegees | Anthony Hamline, Gregory J. Engel, Bryan Christensen | 1995-10-10 |
| 5244003 | Telescopic drain hose | — | 1993-09-14 |