Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D434857 | Paving stone | — | 2000-12-05 |
| 5560173 | Concrete or ceramics elements | — | 1996-10-01 |
| 5548938 | Set of masonry blocks | — | 1996-08-27 |
| 5533827 | Paving stone construction set | — | 1996-07-09 |
| 5503498 | Paving stone with lateral spacers | — | 1996-04-02 |
| 5348417 | Compound pavement stone | — | 1994-09-20 |