Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6631600 | Corner brick block | J. Richard Logan, Aundrea Nurenberg, Clyde G. Allen | 2003-10-14 |
| 6579171 | Ventilation assembly | Jack Lawless, III, J. Richard Logan, Barton Gentsch | 2003-06-17 |