Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7202854 | Alphanumeric keypad and display system and method | David Hohl, Imre Trefil, Anthony Yung | 2007-04-10 |
| 7113172 | Alphanumeric keypad and display system and method | David Hohl, Imre Trefil, Anthony Yung | 2006-09-26 |