Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4688474 | Coffee percolator | — | 1987-08-25 |
| 4633771 | Coffee percolator | — | 1987-01-06 |
| 4583449 | Coffee percolator for selectively making normal coffee or espresso | Artur Dangel, Josef Frech, Willi Niess, Rolf Prillipp, deceased, Hermann Riegert +1 more | 1986-04-22 |
| 4200039 | Coffee machine | — | 1980-04-29 |