Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6664736 | Method and system for indicating bulb circuit failure | William F. Pakkala, Daniel A. Crawford, Diana K. Voges | 2003-12-16 |
| 6384640 | Pulse generator for indicating a change in the magnitude of an input signal | Paul Louis Du Bois, William F. Pakkala, Joyce D. Carsey, Daniel A. Crawford | 2002-05-07 |
| 6154081 | Load circuit having extended reverse voltage protection | William F. Pakkala, Paul Louis Du Bois, Daniel A. Crawford, Adam L. Burnham | 2000-11-28 |