Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6935081 | Reinforced composite system for constructing insulated concrete structures | David C. Dunn | 2005-08-30 |
| 6647686 | System for constructing insulated concrete structures | David C. Dunn, Daniel V. Sorensen | 2003-11-18 |