Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7544242 | Effective use of dispersants in wallboard containing foam | Michael P. Shake, David R. Blackburn, Stewart Hinshaw | 2009-06-09 |
| 7276549 | Surface enhancing coating for gypsum-containing floor underlayments | John Ellicson, David McDonald | 2007-10-02 |
| 6822033 | Compositions and methods for treating set gypsum | Qiang Yu, Jeffrey F. Grussing, Kevin W. Moyer, JR., Richard Spencer | 2004-11-23 |
| 6805741 | Ready-mixed setting-type composition and related kit | Kumar Natesaiyer, Qiang Yu | 2004-10-19 |