Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9139446 | Methods of processing solutions of potassium sulfate and magnesium sulfate, methods of producing potassium sulfate, and related systems | Steven L. Chastain, Michael Morrison, Richard W. Chastain, Thomas H. Neuman | 2015-09-22 |
| 8802048 | Methods of processing solutions of potassium sulfate and magnesium sulfate, methods of producing potassium sulfate, and related systems | Steven L. Chastain, Michael Morrison, Richard W. Chastain, Thomas H. Neuman | 2014-08-12 |
| 8551429 | Methods of processing polyhalite ore, methods of producing potassium sulfate, and related systems | Thomas H. Neuman, Richard W. Chastain, Daniel C. Neuman, Otto C. Schnauber | 2013-10-08 |