Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5616163 | Method for processing animal excrement and liquid manure | — | 1997-04-01 |
| 4217304 | Continuous reduction process | Bernhard Albrecht, Hans-Helmut Frey, Vinzenz Habermacher, Paul Havalda | 1980-08-12 |