Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7560031 | Process for treating pond water | Vaughn V. Astley | 2009-07-14 |
| 6758976 | Simplified purification of phosphoric acid plant pond water | Kenneth J. Jardine, Vaughn V. Astley | 2004-07-06 |
| 6758977 | Purification of phosphoric acid plant pond water | Kenneth J. Jardine, Vaughn V. Astley | 2004-07-06 |
| 5066471 | Lowering post-precipitation in merchant acid | — | 1991-11-19 |
| 5002744 | Method for defluorinating wet process phosphoric acid | Joseph E. Gliksman, Ronald L. Wiegel | 1991-03-26 |
| 4716026 | Defluorination kiln restriction control agent and method | James R. Gruber, Ernest A. Gudath, Robert R. Riddle, Regis R. Stana | 1987-12-29 |
| 4639359 | Process of removing cationic impurities from wet process phosphoric acid | Viswanathan Srinivasan | 1987-01-27 |
| 4330517 | Defluorination of wet process phosphoric acid | — | 1982-05-18 |