Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8557185 | Pressure vessel arrangement comprising an external pressure vessel and at least one insert basket | Josef Schulmeyr, Stefan Geyer | 2013-10-15 |
| 7858138 | Method for decaffeinating tea | Stefan Geyer, Josef Schulmeyr, Birgit Forchhammer, Karin Simon | 2010-12-28 |
| 4946695 | Process for the extraction of nonpolar constituents from plant material | Adrian Forster, Stefan Geyer, Josef Schulmeyr, Roland Schmidt | 1990-08-07 |
| 4938977 | Process for the production of decaffeinated tea | Adrian Forster | 1990-07-03 |
| 4842878 | Process for the extraction of nonpolar constituents of hops | Adrian Forster, Stefan Geyer, Josef Schulmeyr, Roland Schmidt | 1989-06-27 |
| 4640841 | Process for the extraction of hop substances | Adrian Forster | 1987-02-03 |
| 4540784 | Recovery of caffeine adsorbed to activated carbon | Otto Vitzthum, Peter Werkhoff | 1985-09-10 |
| 4506072 | Regeneration of caffeine-loaded activated carbon with hot water | Manfred Barthels, Hans Wienges | 1985-03-19 |