Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6921231 | Segmental retaining wall system | Thomas L. Rainey, Svenn Borgersen | 2005-07-26 |
| 6862856 | Corner block for use in forming a corner of a segmental retaining wall | Donal Jay Armstrong | 2005-03-08 |