Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D389358 | Portable seat | — | 1998-01-20 |
| 5289521 | Audio/telecommunications system to assist in speech and cognitive skills development for the verbally handicapped | Michael J. Coleman | 1994-02-22 |