Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6239790 | Force sensing semiconductive touchpad | John K. Martinelli, Robert Matthew Martinelli, Mark C. Pickett, Wendell W. Ritchey | 2001-05-29 |
| 5943044 | Force sensing semiconductive touchpad | John K. Martinelli, Robert Matthew Martinelli, Mark C. Pickett, Wendell W. Ritchey | 1999-08-24 |