Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6494609 | Slurry mixer outlet | James R. Wittbold, Amit Duvedi, Mark Hemphill, Wayne Anthony Fleming, Wilford Gary Pittman +1 more | 2002-12-17 |
| 5954497 | Method for multi-stage calcining of gypsum to produce an anhydrite product | Michael L. Cloud | 1999-09-21 |
| 5743728 | Method and system for multi-stage calcining of gypsum to produce an anhydrite product | Michael L. Cloud | 1998-04-28 |