Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7381550 | Integrated process for producing “clean beef” (or milk), ethanol, cattle feed and bio-gas/bio-fertilizer | David E. Hallberg | 2008-06-03 |
| 6355456 | Process of using wet grain residue from ethanol production to feed livestock for methane production | David E. Hallberg | 2002-03-12 |