Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7919731 | Stirring hot plate | Kenneth Hermsen, Roger Earle, James R. Edwards, Kerry W. Leppert, Eric Jackson +3 more | 2011-04-05 |
| 7075040 | Stirring hot plate | Kenneth Hermsen, Roger Earle, James R. Edwards, Kerry W. Leppert, Eric Jackson +3 more | 2006-07-11 |