Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6817155 | Structural shape for use in frame construction | — | 2004-11-16 |
| 6199341 | Connection for a lightweight steel frame system | Barry J. Carlin, David P. Green, Richard H. Gustafson | 2001-03-13 |
| 5865008 | Structural shape for use in frame construction | — | 1999-02-02 |