Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7219912 | Raising wheel chair | — | 2007-05-22 |
| 7007963 | Raising wheel chair | — | 2006-03-07 |
| 5984338 | Lightweight stabilized raising chair | — | 1999-11-16 |
| 4684149 | Collapsible wheelchair and wheelchair structure | — | 1987-08-04 |
| 4598944 | Hand grip controlled, user assisted raising chair | Peter Nold | 1986-07-08 |
| 4521989 | Sprouting apparatus | — | 1985-06-11 |
| 4462604 | Size-adjustable erecting wheelchair | — | 1984-07-31 |
| 4199234 | Slide projector apparatus | — | 1980-04-22 |
| 4192477 | Pipe-wall stud connector | John R. Decky | 1980-03-11 |