Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6000758 | Reclining lift chair | Walter E. Schaffner, James P. Mulhern, Ronald Levi, Stephen J. Antonishak | 1999-12-14 |
| 5695021 | Electrically-powered scooter for personal transport | Walter E. Schaffner, Walter Kochan | 1997-12-09 |