Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5077061 | Method of making alcohol-free or nearly alcohol-free beer | Rudiger Gruss | 1991-12-31 |
| 4938986 | Recovering roughage from draff and product produced according to the method | Rudiger Gruss | 1990-07-03 |