Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6488425 | Portable electronics device having keypad and removable bezel | Gary D. Spence | 2002-12-03 |
| 6421234 | Handheld electronics device having ergonomic features | Gary D. Spence, Ronald H. Campbell | 2002-07-16 |
| 6407911 | Sealed portable electronics device having expansion port | Gary D. Spence | 2002-06-18 |
| 4907250 | Method and apparatus for counting events in a vending machine and the like | — | 1990-03-06 |