Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10767744 | Gears and gear combinations | — | 2020-09-08 |
| 6722806 | Cleaning implements | Jeffery Scott Kunkler, Christopher T. Boyer, Kevin James Zwart, Arnold George Benecke, Kevin Michael Campbell +1 more | 2004-04-20 |
| 6579023 | Cleaning implements | Jeffery Scott Kunkler, Christopher T. Boyer, Kevin James Zwart, Arnold George Benecke, Kevin Michael Campbell +1 more | 2003-06-17 |
| 4766640 | Self-propelled upright vacuum cleaner having a remotely disposed transmission and a positive locking mechanism | Dean Martin, James A. Hardy | 1988-08-30 |