Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10528598 | Energy management system and method | — | 2020-01-07 |
| 7727765 | Method for leak testing an environmental enclosure | John A. Organiscak | 2010-06-01 |
| 7220078 | Ground covering elements of artificial stone material | Andreas Drost | 2007-05-22 |
| 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 |
| D498543 | Paving element | Andreas Drost | 2004-11-16 |
| 6790544 | Multiple layer composite material consisting of cement-bound concrete and polymer-bound concrete and method for producing the same | — | 2004-09-14 |
| D486588 | Wall element | — | 2004-02-10 |
| D485370 | Paving element | Andreas Drost | 2004-01-13 |
| 6430886 | Building stone and masonry formed therefrom | — | 2002-08-13 |
| 6171015 | Anchoring of outdoor traffic areas provided with cobblestones or paving stones | Gunter Barth | 2001-01-09 |
| D431305 | Paving stone | Gunter Barth | 2000-09-26 |
| D425628 | Paving stone | Gunter Barth | 2000-05-23 |
| 5902069 | Artificial paving stone with identical spacer elements having a tooth and a tooth recess | Gunter Barth | 1999-05-11 |
| D404836 | Paving element | Gunter Barth | 1999-01-26 |
| 5797698 | Paving elements for the water-permeable reinforcement of surfaces | Gunter Barth | 1998-08-25 |
| D389926 | Paving element | Gunter Barth | 1998-01-27 |
| 5423903 | Air filter | Eugene Ahrenholtz | 1995-06-13 |