Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7740042 | Apparatus for vibration welding of sheet materials | Georg Heerten, Stephan Priewich, Werner Uehlemann | 2010-06-22 |
| 7740422 | Method for producing large surface area geogrids with high tensile strength and large surface area geogrids | Georg Heerten, Stephan Priewich, Werner Uehlemann | 2010-06-22 |
| 6572718 | Method for producing large surface area geogrids with high tensile strength | Georg Heerten, Stephan Priewich, Werner Uehlemann | 2003-06-03 |
| 6559300 | Water-soluble biodegradable hydroxyalkyl cellulose-2-hydroxycarboxylic acid esters which can flocculate | Joachim Simon, Hanns P. Muller, Rainhard Koch, Jurgen Engelhardt, Klaus Szablikowski +1 more | 2003-05-06 |
| RE37295 | Water and/or oil-impermeable sealing mat consisting substantially of a substrate layer, a layer of swellable clay and a cover layer | Georg Heerten, Karsten Johannssen | 2001-07-24 |
| 5861506 | Compostable and thermoplastic cellulose ether-2-hydroxycarboxylic acid esters and mixed esters | Joachim Simon, Hanns P. Muller, Rainhard Koch, Dirk Dijkstra, Jurgen Engelhardt | 1999-01-19 |
| 5717087 | Thermoplastic and biodegradable polysaccharide esters/polysaccharide ether esters containing maleic acid addition product groups | Jochen Kalbe, Reinhard Koch, Hanns P. Muller, Jurgen Engelhardt, Wolfgang Koch | 1998-02-10 |
| 5698612 | Thermoplastically workable, biodegradable moulding compositions | Joachim Simon, Hanns P. Muller, Dirk Dijkstra, Jurgen Engelhardt, Gunter Weber | 1997-12-16 |
| 5041330 | Water and/or oil-impermeable sealing mat consisting substantially of a substrate layer, a layer of swellable clay and a cover layer | George Heerten, Karsten Johannben | 1991-08-20 |