Issued Patents All Time
Showing 101–125 of 153 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6566481 | Polyisocyanates with allophanate groups derived from alicyclic alkanediols | Hans Renz, Gunter Mohrhardt, Hubert Baumgart, Simone Bitter | 2003-05-20 |
| 6538096 | Storage-stable polyisocyanates | Gunter Mohrhardt, Hans Renz, Joachim Jähme | 2003-03-25 |
| 6479564 | Isocyanate-based hardenable preparations | Reinhold Schwalm, Erich Beck | 2002-11-12 |
| 6465596 | Linear oligourethanes and polyurethanes having a defined structure, their preparation and their use | Thomas Servay, Ulrich Treuling | 2002-10-15 |
| 6437276 | Horizontally positioned, encapsulated high-voltage circuit breaker | Manfred Meinherz, Bernd Raeth, Michael Suhr | 2002-08-20 |
| 6433124 | Reactive polymers and isocyanate-reactive polymers obtainable therefrom | Hans Renz, Heinz-Dieter Lutter | 2002-08-13 |
| 6416686 | Polyisocyanates | Hans Renz, Rainer Koniger, Ulrike Ehe, Ulrich Treuling, Rudolf Müller-Mall | 2002-07-09 |
| 6414184 | Process for producing polyisocyanates containing biuret groups from (cyclo)aliphatic diisocyanates | Martin Reif, Werner Hofscheuer, Joachim Jähme, Werner Langer, Hans Renz +2 more | 2002-07-02 |
| 6414108 | Biodegradable polymers, the production thereof and the use thereof for producing biodegradable moldings | Volker Warzelhan, Dieter Boeckh, Ursula Seeliger, Motonori Yamamoto, Peter Bauer | 2002-07-02 |
| 6376637 | Dendritic and highly branched polyurethanes | Ulrike Ehe, Frank Wingerter, Konrad Stiefenhöfer, Ulrich Treuling | 2002-04-23 |
| 6303677 | Biodegradable polymers, preparation thereof and use thereof for producing biodegradable moldings | Volker Warzelhan, Gunnar Schornick, Ursula Seeliger, Motonori Yamamoto, Peter Bauer | 2001-10-16 |
| 6297347 | Biodegradable polymers, the production thereof and the use thereof for producing biodegradable moldings | Volker Warzelhan, Dieter Boeckh, Ursula Seeliger, Motonori Yamamoto, Peter Bauer | 2001-10-02 |
| 6258924 | Biodegradable polymers, the preparation thereof, and the use thereof for producing biodegradable moldings | Volker Warzelhan, Dieter Boeckh, Ursula Seeliger, Motonori Yamamoto, Peter Bauer | 2001-07-10 |
| 6229043 | Preparation of mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates having a reduced iodine color number and a reduced chlorine content | Dietrich Scherzer, Roland Minges, Peter Keller, Willy van Pee, Wolfgang Heider +4 more | 2001-05-08 |
| 6201034 | Biodegradable polymers, the production thereof and the use thereof for producing biodegradable moldings | Volker Warzelhan, Gunnar Schornick, Ursula Seeliger, Motonori Yamamoto, Peter Bauer | 2001-03-13 |
| 6187893 | Two-component polyurethane systems which contain reactive diluents | Heinz-Dieter Lutter, Hans Renz, Dietrich Scherzer, Gunter Mohrhardt | 2001-02-13 |
| 6120895 | Biodegradable polyesters | Christoph Kowitz, Peter Bauer, Dieter Bernhard Beimborn, Uwe Faller, Martin Laun +3 more | 2000-09-19 |
| 6114042 | Biodegradable polymers, the production thereof and use thereof for producing biodegradable moldings | Volker Warzelhan, Gunnar Schornick, Ursula Seeliger, Motonori Yamamoto, Peter Bauer | 2000-09-05 |
| 6096238 | Preparation of CFC-free, highly resilient, flexible polyurethane foams, and diphenylmethane diisocyanate-based polyisocyanate mixtures modified by means of urethane groups which can be used for this purpose | Heinz-Dieter Lutter, Ruth Zschiesche, Jurgen Mertes, Klaus Pittrich, Peter Brandt | 2000-08-01 |
| 6066759 | Process and device for preparing (cyclo)aliphatic biuret groups-containing polyisocyanates | Wolfgang Heider, Stefan Wolff, Klaus Bittins | 2000-05-23 |
| 6022938 | Compounds with isocyanate groups and masked groups reactive in relation to isocyanates | Hans Renz, Gunter Mohrhardt | 2000-02-08 |
| 6018004 | Biodegradable polymers, preparation thereof and use thereof for producing biodegradable moldings | Volker Warzelhan, Gunnar Schornick, Ursula Seeliger, Motonori Yamamoto, Peter Bauer | 2000-01-25 |
| 6007752 | Production of sheet-like polyurethane moldings | Dietrich Scherzer, Ludwig Jung, Hans Renz | 1999-12-28 |
| 5981684 | Highly functionalized polyurethanes | Frank Wingerter, Hermann Graf, Stefan Wolff | 1999-11-09 |
| 5917059 | Preparation of cyclic acetals or ketals | Karl Haberle, Helmut Gruner, Michael Hirn | 1999-06-29 |