Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7591257 | Fuel selection device | Chris Turner, Christine Richardson, Robert D. Kern | 2009-09-22 |
| 7341044 | Method and control device for regulating the air-fuel mixture provided to an engine | Christine Richardson, Guoming Wu, Robert D. Kern | 2008-03-11 |
| 6742771 | Fuel mixer for internal combustion engine | Gerald C. Ruehlow | 2004-06-01 |
| 6726734 | Device for deflecting debris from lawnmower air intake | Gerald C. Ruehlow | 2004-04-27 |
| 6706084 | Device for deflecting debris from lawnmower air intake | Gerald C. Ruehlow | 2004-03-16 |
| 5890413 | Piston for water pump and related method | Herb Hoenisch, Robert D. Kern, Gerald C. Ruehlow, Wes Sodemann | 1999-04-06 |