Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5897903 | Coffee extraction process | Elke Gerhard-Rieben, Claude Rene Lebet, Valerie Martine Jeanine Leloup | 1999-04-27 |
| 5242700 | Treatment of extracts obtained by split extraction of coffee | — | 1993-09-07 |
| 5236729 | Obtention and use of coffee oil | Olaf Wehrspann | 1993-08-17 |
| 5190779 | Countercurrent extraction of coffee | — | 1993-03-02 |
| 5183676 | Process for countercurrent extraction of coffee | — | 1993-02-02 |
| 5151287 | Process for increasing coffee extraction yield | Olaf Wehrspann | 1992-09-29 |
| 4701333 | Process for extracting roasted and ground coffee | Geoffrey Margolis, Alain Mercier | 1987-10-20 |