Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6013040 | Power actuated lumbosacral backrest | George Wolf | 2000-01-11 |
| 4915448 | Power actuated lumbosacral backrest | — | 1990-04-10 |
| 4722569 | Power and manually actuated lumbosacral backrest | Edward W. Osann, Jr. | 1988-02-02 |
| 4541670 | Lumbosacral backrest with adjustable contour | Edward W. Osann, Jr. | 1985-09-17 |