Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6803002 | Method for making and treating wall blocks | Antal Suto, John Daniel Campau, Donald L. Reuschel, Robert A. MacDonald | 2004-10-12 |
| 5788460 | Method and apparatus for patterning concrete blocks and products | — | 1998-08-04 |