Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4808391 | Oxidation-reduction process for enhancing the color of and stabilizing wet process phosphoric acid | David D. Leavitt, Ken Kranz, Greg Gorman | 1989-02-28 |
| 4557748 | Method of lowering the magnesium impurity level of wet-process phosphoric acid during production of liquid fertilizer | Ken Kranz | 1985-12-10 |