Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6017525 | Poultry house litter treatment | Walter T. Logan | 2000-01-25 |
| 5746155 | Water treatment with large numbers of non-pathogenic bacteria to improve yield of aquatic animals | Walter T. Logan | 1998-05-05 |