Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6128031 | Broadcast signal receiver retrofit apparatus and method | David Schmidt, Carl M. Elam | 2000-10-03 |
| 6081290 | Broadcast signal receiver retrofit apparatus and method | David Schmidt, Carl M. Elam | 2000-06-27 |