Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8551429 | Methods of processing polyhalite ore, methods of producing potassium sulfate, and related systems | Thomas H. Neuman, Richard W. Chastain, Donial M. Felton, Otto C. Schnauber | 2013-10-08 |
| 6911191 | One-step oxidation of wet-process phosphoric acid | Russell Dean Alcorn, Bryce Richard Carpenter | 2005-06-28 |
| 5679315 | Method of production of high purity silica | Clint R. Humpherys | 1997-10-21 |