Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5114699 | Spent alkylation acid treatment process | Tadeusz K. Wiewiorowski, Vivian C. Astley, Michael A. Murray | 1992-05-19 |
| 4710366 | Method for producing stabilized wet process phosphoric acid with low content of magnesium and aluminum | Vivian C. Astley | 1987-12-01 |
| 4657559 | Process for seed crystal preparation for phosphoric acid crystallization | Phillip D. Mollere, Vivian C. Astley | 1987-04-14 |
| 4577804 | Wet grinding phosphate rock in an acidic slurry | Vivian C. Astley, Rudolph R. Milan | 1986-03-25 |
| 4487750 | Stabilization of wet process phosphoric acid | Vivian C. Astley | 1984-12-11 |