Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4807181 | Dictionary memory with visual scanning from a selectable starting point | Howard C. Duncan, IV, Donald T. Adams | 1989-02-21 |
| 4797855 | Word processor having spelling corrector adaptive to operator error experience | Howard C. Duncan, IV, Joseph P. Battista | 1989-01-10 |
| 4783761 | Spelling check dictionary with early error signal | Donald T. Adams, Howard C. Duncan, IV | 1988-11-08 |
| 4782464 | Compact spelling-check dictionary | Donald T. Adams, Howard C. Duncan, IV | 1988-11-01 |
| 4655620 | Spelling error finding feature including an electronic spelling dictionary | Donald T. Adams | 1987-04-07 |
| 4585362 | One-touch character correction and replacement system | — | 1986-04-29 |