Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7752708 | Floor cleaning apparatus with filter cleaning system | Nathan A. Gogel, Donald Eugene Proffitt, Alan T. Pullins, James Todd Crouch, Michael L. Fry +2 more | 2010-07-13 |
| 7373689 | Floor care apparatus having visual dirt indicator with flexible membrane circuit | Jason Bowden | 2008-05-20 |