Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5732848 | Disposable and returnable containers comprising an insert | Siegbert Papzien | 1998-03-31 |
| 5527380 | Recovery of non-ferrous metals from dross | Henrik Gripenberg, Michael Mullerthann | 1996-06-18 |