Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6942420 | Ground covering elements of artificial stone material | Andreas Drost | 2005-09-13 |
| 6938382 | Stockade | — | 2005-09-06 |
| 6857244 | Cast stone for fixing exterior traffic surfaces | — | 2005-02-22 |