Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7954200 | Constant head device for a cleaning machine | Christel R. Richard | 2011-06-07 |
| 6134746 | Hand held turbine powered extractor nozzle | Daniel R. Miller, Douglas C. Barker, Kenneth L. Symensma | 2000-10-24 |
| 6108862 | Hand grip and upper handle assembly for a self-propelled upright vacuum cleaner | Lynn A. Frederick, Jeffery A. Morgan, Daniel R. Miller, Nick M. Bosyj | 2000-08-29 |
| 5433242 | Pressure activated dispensing valve | Dean H. Buchtel, Gerald L. Melegari | 1995-07-18 |
| 4831685 | Wet and dry vacuum cleaner | Nick M. Bosyj, Vincent L. Weber, Gregory P. Wagner | 1989-05-23 |
| 4364757 | Vacuum cleaner filter bag collar arrangement | — | 1982-12-21 |