Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5189610 | Electronic dictionary with correct and incorrect words | Ronald M. Kaplan, Kenneth J. Henderson | 1993-02-23 |
| 4829472 | Spelling check module | Kenneth J. Henderson | 1989-05-09 |