Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10535940 | Plug-in connector with a heat capacity element arranged on a contact element | Thomas Fuehrer | 2020-01-14 |
| 9657133 | Rigid polyurethane foams | Johann Klassen, Louis Du Rieu, Werner Wiegmann, Guenter Matzke | 2017-05-23 |
| 8293807 | Method for the production of rigid polyurethane foam | Andreas Emge, Daniel Freidank | 2012-10-23 |
| 7893124 | Method for producing rigid polyurethane foams | Andreas Emge, Stefan Dinsch, Johann Klassen, Christian Stelling | 2011-02-22 |
| 6495652 | Prepolymers containing isocyanate groups and a method for the production thereof | Michael Reichelt, Udo Rotermund, Renate Hempel, Peter Falke, Peter von Malotki | 2002-12-17 |
| 6284812 | Thermally stable rigid foams based on isocyanate and having low brittleness and low thermal conductivity | Udo Rotermund, Renate Hempel, Werner Schmiade | 2001-09-04 |
| 6100308 | Preparation of polyurethanes having improved curing | Bernd Guettes, Stefan Dinsch, Gottfried Knorr | 2000-08-08 |
| 6040349 | Production of rigid polyurethanes foams with reduced density | Gottfried Knorr, Udo Rotermund, Eva Baum, Werner Wiegmann | 2000-03-21 |
| 5895792 | Production of rigid polyurethane foams | Udo Rotermund, Renate Hempel, Werner Wiegmann | 1999-04-20 |
| 5750586 | Production of CFC-free polyurethane rigid foams having a reduced thermal conductivity and their use | Stefan Adams | 1998-05-12 |
| 5684092 | Production of rigid foams based on isocyanate | Renate Hempel, Gottfried Knorr, Udo Rotermund | 1997-11-04 |
| 5670554 | Production of CFC-free polyurethane rigid foams having a reduced thermal conductivity and their use | Stefan Adams | 1997-09-23 |
| 5624969 | Production of rigid foams based on isocyanate | Renate Hempel, Gottfried Knorr, Udo Rotermund | 1997-04-29 |
| 5556891 | Prepolymers containing isocyanate groups | Juergen Winkler, Regina Pretzsch, Robert O'Meara | 1996-09-17 |
| 5530154 | Prepolymers containing isocyanate groups | Juergen Winkler, Regina Pretzsch, Robert O'Meara | 1996-06-25 |
| 5492941 | Polyurethane-based, compact moldings or moldings having a cellular core and a compacted surface, process for their production, and their use as shoe or shoe sole material | Peter Falke, Marion Heinz | 1996-02-20 |
| 5488070 | Polyurethane-based, compact moldings or moldings having a cellular core and a compacted surface, process for their production, and their use as shoe or shoe sole material | Peter Falke, Marion Heinz | 1996-01-30 |