Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5571303 | Sulfur-based fertilizer and process for production thereof | — | 1996-11-05 |
| 4330319 | Manufacture of urea sulfur fertilizer | Gordon C. Hildred, John T. Higgins, James G. Whitham | 1982-05-18 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5571303 | Sulfur-based fertilizer and process for production thereof | — | 1996-11-05 |
| 4330319 | Manufacture of urea sulfur fertilizer | Gordon C. Hildred, John T. Higgins, James G. Whitham | 1982-05-18 |