Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8343273 | Method of modifying beta stucco using diethylene-triamine-pentaacetic acid | Dennis Mark Lettkeman, Raymond A. Kaligian, John W. Wilson | 2013-01-01 |
| 7588634 | Process for manufacturing ultra low consistency alpha- and beta- blend stucco | Michael R. Lynn, W. David Song, Qingxia Liu, Qiang Yu | 2009-09-15 |
| 5954497 | Method for multi-stage calcining of gypsum to produce an anhydrite product | Kirk S. Moore | 1999-09-21 |
| 5927968 | Apparatus for continuous refractoryless calcining of gypsum | George E. Rowland, Daniel J. Milligan | 1999-07-27 |
| 5743728 | Method and system for multi-stage calcining of gypsum to produce an anhydrite product | Kirk S. Moore | 1998-04-28 |
| 5743954 | Method for continuous refractoryless calcining of gypsum | George E. Rowland, Daniel J. Milligan | 1998-04-28 |