Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10889679 | Polyurethane hybrid polymers and process for the production thereof | Hans-Detlef Arntz, Koichi Kawamura, Gerlinde Koss-Nasser | 2021-01-12 |
| 9376564 | Polyurethane casting resins and potting compounds produced therefrom | Florian Hupka, Marcel Schornstein, Dirk Wegener, Harald Rasselnberg | 2016-06-28 |
| 7772321 | Polymer dispersions in polyester polyols | Hartmut Nefzger, Erika Bauer | 2010-08-10 |
| 7091304 | Process for cleaning production plants for polyester polyols | Hartmut Nefzger, Gerhard Klein, Ulrich Boddenberg | 2006-08-15 |
| 6858699 | Polyurethane elastomers and processes for their preparation and use | Hartmut Nefzger, Stephan Schleiermacher | 2005-02-22 |
| 6737471 | Polyurethane elastomers which exhibit improved stability to hydrolysis | Klaus Lorenz, Marc Schütze, Alexander Eckhardt | 2004-05-18 |
| 6169157 | Method for producing semi-rigid compact or cellular shaped bodies with a PUR base and the stabilization thereof; shaped bodies produced according to said method and the use thereof | Klaus Pleiss, Hans-Norbert Dick | 2001-01-02 |
| 6147181 | Two step procedure for the production of semi-hard solid polyurethane molded bodies | Klaus Pleiss, Franz Scholtis | 2000-11-14 |
| 5464880 | Process for the CFC-free production of cellular polyurethane molded parts | Hans Weber, Peter Haas, Christian Weber, Klaus Brecht | 1995-11-07 |