Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7914884 | Fabric reinforced cement | Joseph R. Royer, Randolph S. Kohlman | 2011-03-29 |
| 6960394 | Fabric reinforced cement | Joseph R. Royer | 2005-11-01 |
| 6838163 | Composite facer for wallboards | Robert M. Smith, George C. McLarty, III, Andrew D. Child, W. Randolph Hursey | 2005-01-04 |