Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D308198 | Digitizing tablet | Thomas A. Tedham | 1990-05-29 |
| D308055 | Digitizing tablet for computer input | Thomas A. Tedham | 1990-05-22 |
| D307421 | Digitizing pen | Thomas A. Tedham | 1990-04-24 |
| D302684 | Keyboard | Marcus C. Koepke | 1989-08-08 |
| D300324 | Cursor control for computer display | Douglas C. Bushman, Diane G. Hodes, Marcus C. Koepke | 1989-03-21 |
| D279474 | Keyboard | Charles N. Abernethy, John C. Costello, Christian C. Landry, Richard Eugene Leitermann, David S. Urbanus | 1985-07-02 |