Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6880306 | Bracket system for mounting fiberglass panel tiles | David J. Burken, William J. McKibbin, Christian J. Kleppe, Robert Nichols | 2005-04-19 |
| 6865853 | Base assembly for wall panel construction | David J. Burken, William J. McKibbin, Christian J. Kleppe, Robert Nichols | 2005-03-15 |