Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6974317 | Lightweight concrete composite blocks | — | 2005-12-13 |
| 6827570 | Method and apparatus for manufacture of unitary lightweight concrete composite blocks | Wondel Creager | 2004-12-07 |