Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10368712 | Surface maintenance vehicle with self-cleaning reservoir that captures hose runoff | — | 2019-08-06 |
| 8562704 | Integral vacuum fan housing | Kurt Clarence Adelman | 2013-10-22 |
| 7967914 | Method and apparatus for cleaning fabrics, floor coverings, and bare floor surfaces utilizing a soil transfer medium | Daniel G. Giddings, Frederick A. Hekman, Richard W. Wellens | 2011-06-28 |
| 7306639 | Demisting chamber with elbow strainer | Michael T. Basham | 2007-12-11 |
| 7059013 | Fluid recovery device | David E. Bros | 2006-06-13 |
| 7025834 | Retractable broom and dust skirt | Daniel L. Joynt, Ronald W. Lehman | 2006-04-11 |
| 6742219 | Air sweeping apparatus | Michael H. Lenzmeier | 2004-06-01 |
| 6735812 | Dual mode carpet cleaning apparatus utilizing an extraction device and a soil transfer cleaning medium | Frederick A. Hekman, Jeffrey D. Fystrom | 2004-05-18 |
| 6662402 | Apparatus for cleaning fabrics, floor coverings, and bare floor surfaces utilizing a soil transfer cleaning medium | Daniel G. Giddings, Richard W. Wellens | 2003-12-16 |
| 4735560 | Seal assembly for a rotary device | Ralph M. Hoffmann | 1988-04-05 |