Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6243071 | Tool set for navigating through an electronic book | David R. Dunham | 2001-06-05 |
| 6144380 | Method of entering and using handwriting to identify locations within an electronic book | David R. Dunham | 2000-11-07 |
| 5802516 | Method of controlling an electronic book for a computer system | David R. Dunham | 1998-09-01 |
| 5524201 | Method of preparing an electronic book for a computer system | David R. Dunham | 1996-06-04 |