Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4946695 | Process for the extraction of nonpolar constituents from plant material | Stefan Geyer, Josef Schulmeyr, Roland Schmidt, Manfred Gehrig | 1990-08-07 |
| 4938977 | Process for the production of decaffeinated tea | Manfred Gehrig | 1990-07-03 |
| 4842878 | Process for the extraction of nonpolar constituents of hops | Stefan Geyer, Josef Schulmeyr, Roland Schmidt, Manfred Gehrig | 1989-06-27 |
| 4640841 | Process for the extraction of hop substances | Manfred Gehrig | 1987-02-03 |