Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6874293 | Protruding planter block for retaining wall | — | 2005-04-05 |
| 6854702 | Form for manufacturing concrete blocks for freestanding walls | Benjamin R. Manthei | 2005-02-15 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6874293 | Protruding planter block for retaining wall | — | 2005-04-05 |
| 6854702 | Form for manufacturing concrete blocks for freestanding walls | Benjamin R. Manthei | 2005-02-15 |