Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6758976 | Simplified purification of phosphoric acid plant pond water | Dennis H. Michalski, Vaughn V. Astley | 2004-07-06 |
| 6758977 | Purification of phosphoric acid plant pond water | Dennis H. Michalski, Vaughn V. Astley | 2004-07-06 |
| 6280494 | Method for producing fertilizer grade DAP having an increased nitrogen concentration in a spray column | — | 2001-08-28 |
| 6241796 | Method for producing fertilizer grade DAP having an increased nitrogen concentration from recycle | Vaughn V. Astley | 2001-06-05 |
| 4446114 | Method of increasing the strip coefficient of the strip solution stream in a reductive stripping uranium recovery operation | Robert A. Holleman | 1984-05-01 |