Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6866492 | Gypsum board forming device | Robert J. Hauber, Christopher J. Sanders, Mark E. Hennis | 2005-03-15 |
| 6524679 | Glass reinforced gypsum board | Robert J. Hauber, Christopher J. Sanders, Mark E. Hennis | 2003-02-25 |