Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7740042 | Apparatus for vibration welding of sheet materials | Georg Heerten, Volkhard Muller, Stephan Priewich | 2010-06-22 |
| 7740422 | Method for producing large surface area geogrids with high tensile strength and large surface area geogrids | Georg Heerten, Volkhard Muller, Stephan Priewich | 2010-06-22 |
| 6572718 | Method for producing large surface area geogrids with high tensile strength | Georg Heerten, Volkhard Muller, Stephan Priewich | 2003-06-03 |