Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10513834 | Modular block retaining wall construction system with channels and methods of manufacture and use | John T. Amrein | 2019-12-24 |
| D866798 | Modular block | John T. Amrein | 2019-11-12 |
| D855834 | Block insert | John T. Amrein | 2019-08-06 |
| 8136325 | Landscaping wall structure and form | David P. Van Lerberg | 2012-03-20 |