Issued Patents 2019
Showing 1–3 of 3 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 |