Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8182698 | Method for improving gypsum/phosphoric acid slurry filtration using carboxymethyl cellulose | — | 2012-05-22 |
| 7563378 | Dual injection of two polymeric filtration aids for gypsum removal from phosphoric acid/gypsum slurry | — | 2009-07-21 |
| 7396474 | Dual injection of two polymeric filtration aids for gypsum removal from phosphoric acid/gypsum slurry | — | 2008-07-08 |