Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870844 | Object separator supported and hooked to a single ring-like component | — | 1989-10-03 |
| 4722473 | Rigid, multipurpose, polyhedric structure which can be folded away on its own base | Rolf Neumann | 1988-02-02 |