Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D361761 | Computer keyboard | Charles E. Ader | 1995-08-29 |
| 5410332 | Trackball device with improved ball suspension and adjustable resolution | John K. Martinelli, Charles E. Ader | 1995-04-25 |
| D335658 | Track ball for computer system cursor control | — | 1993-05-18 |
| D328458 | Trackball for computer system monitor | — | 1992-08-04 |
| D313589 | Hand operated computer display control | John K. Martinelli | 1991-01-08 |