Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7828498 | Connection mechanism for large scale retaining wall blocks | Dan J. Hotek | 2010-11-09 |
| 7124754 | Method and device for creating a decorative block feature | — | 2006-10-24 |
| D509909 | Retaining wall and block face | — | 2005-09-20 |
| D509002 | Step block | — | 2005-08-30 |
| D502553 | Step block | — | 2005-03-01 |
| 5820304 | Blocks for constructing retaining walls | Michael Smuda | 1998-10-13 |