Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4928982 | Convertible running shoes/roller skates | — | 1990-05-29 |
| 4781143 | Trailable vehicle pontoon system | — | 1988-11-01 |
| 4738057 | Arch supported retractable inflatable roof | — | 1988-04-19 |
| RE31862 | Apparatus for the treatment of lignocellulosic material | Friedrich O. B. Ludhe | 1985-04-09 |