Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8533903 | Dirt cup assembly with a pre-filter having a plurality of ribs | Eric E. Muhlenkamp, Joe M. Reynolds | 2013-09-17 |
| 7921510 | Motor enclosure for a vacuum cleaner | Ronald E. Davis | 2011-04-12 |
| 7614113 | Motor enclosure for a vacuum cleaner | Ronald E. Davis | 2009-11-10 |
| 7318250 | Bare floor shifter for vacuum cleaner | — | 2008-01-15 |
| 7165286 | Agitator construction | Eric E. Muhlenkamp | 2007-01-23 |
| 7120964 | Bare floor shifter for vacuum cleaner | — | 2006-10-17 |
| 7007336 | Agitator construction | Eric E. Muhlenkamp | 2006-03-07 |
| 6915544 | Agitator drive system with bare floor shifter | Ron Davis | 2005-07-12 |
| 6859970 | Agitator for vacuum cleaner/extractor | Eric E. Muhlenkamp | 2005-03-01 |
| 6832408 | Caddy for vacuum cleaner tool and accessories | Eric E. Muhlenkamp | 2004-12-21 |
| 6807708 | Upright vacuum cleaner with dual hoses and hose ports | Danielle Hafling | 2004-10-26 |
| 6766559 | Telescoping handle for upright vacuum cleaner | James Todd Crouch | 2004-07-27 |
| 6169258 | Three position control switch assembly | Bradley T. Baker | 2001-01-02 |
| 6067689 | Shifter mechanism for vacuum cleaner | Eric V. Fosbrink | 2000-05-30 |
| 5467502 | Height adjusting system for upright vacuum cleaner | Milton Johnson | 1995-11-21 |