Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9415527 | Method for producing concrete blocks | Hans Gebhart | 2016-08-16 |
| 9061438 | Device and method for artificial aging of stones | Hans Gebhart | 2015-06-23 |
| 8696341 | Device for producing concrete blocks | Hans Gebhart | 2014-04-15 |
| 7651328 | Process and apparatus for artificially ageing blocks | Hans Gebhart, Roland Werner | 2010-01-26 |