Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9038346 | Segmental retaining wall corner block and wall corner comprised of corner blocks | — | 2015-05-26 |
| 8734060 | Double-wall structure comprised of interconnected dry-stacked wall blocks | — | 2014-05-27 |
| 8640411 | Cap block for capping walls | — | 2014-02-04 |
| 8464481 | Segmental retaining wall corner block | — | 2013-06-18 |
| D655425 | Retaining wall corner block | — | 2012-03-06 |
| 7963727 | Retaining wall block and retaining wall comprised of retaining wall blocks | — | 2011-06-21 |
| D587382 | Retaining wall block | — | 2009-02-24 |
| 4531304 | Production of concrete articles utilizing heat-reclaiming system | Willard W. Stratz | 1985-07-30 |