Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6665460 | Method and apparatus for selecting signal components from optical signals | Stylianos Derventzis, Steve Hill, Ali Langari, Mike Liwak, Robert Thayer | 2003-12-16 |
| 5366276 | Adjustable arm rest | Douglas G. Broadhead, Donald B. Hovis | 1994-11-22 |
| 5222567 | Power assist device for a wheelchair | Douglas G. Broadhead | 1993-06-29 |