Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4583449 | Coffee percolator for selectively making normal coffee or espresso | Josef Frech, Willi Niess, Rolf Prillipp, deceased, Hermann Riegert, Gerhard Wittlinger +1 more | 1986-04-22 |