Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7561034 | Vehicle load warning system | Keith Reichow, Pat Ryan, Bill Zimmerman, John Hoffman | 2009-07-14 |
| 7113081 | Vehicle load warning system | Keith Reichow, Pat Ryan, Bill Zimmerman, John Hoffman | 2006-09-26 |
| 4767977 | Battery charger | Kenneth R. Fasen, Kim R. Rogers | 1988-08-30 |
| 4754230 | Compandorized system clipping suppressing arrangement | Michael A. Williams | 1988-06-28 |