Issued Patents All Time
Showing 25 most recent of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8574520 | Metal oxide support material containing nanoscaled iron platinum group metal | Tobias Joachim Koplin, Imme Domke, Christopher R. Castellano, Gerald Stephen Koermer, Wolfgang Schrof +5 more | 2013-11-05 |
| 8568522 | Method of passivating metallic surfaces by means of copolymers having phosphoric acid and/or phosphonic acid groups | Frank Klippel, Alexander Gothlich, Dietrich Fehringer, Thomas Heidenfelder, Helmut Witteler +1 more | 2013-10-29 |
| 8420174 | Polymer composition for corrosion protection | Alexander Goethlich, Frank Klippel, Guido Vandermeulen, Helmut Witteler, Thomas Heidenfelder +4 more | 2013-04-16 |
| 8002119 | Control of the thickening of silicate-containing aqueous systems | Karl-Heinz Buechner, Stephan Nied, Alexander Goethlich, Frank Klippel | 2011-08-23 |
| 7749337 | Method for the passivation of metal surfaces with polymers containing acid groups | Helmut Witteler, Walter Bertkau, Thomas Heidenfelder, Alexander Gothlich, Jens Haas +1 more | 2010-07-06 |
| 7220821 | Process for the reduction of the residual monomer content of water-absorbent foam | Hans-Joachim Hähnle, Rüdiger Funk, Wolfgang Heider, Volker Frenz | 2007-05-22 |
| 7189575 | Method and device for determining the swelling behavior of polymer gels under pressure | Wolfgang Schrof, Udo Gödert, Martin H. Beck, Hans-Joachim Hähnle | 2007-03-13 |
| 6750262 | Water-absorbing, cellular, cross-linked polymers with improved distribution effect, method for their production and their use | Hans-Joachim Hähnle, Ulrich Schröder, Wolfgang Heider, Thomas Anstock | 2004-06-15 |
| 6703431 | Flexible open-celled microcellular polymer foams | Franz-Josef Dietzen, Hans-Joachim Hähnle, Serguei Evsioukov, Gerd Ehrmann, Rüdiger Funk | 2004-03-09 |
| 6455600 | Water-absorbing, cross-linked polymerizates in the form of a foam, a method for the production thereof, and their use | Hans-Joachim Hähnle, Ulrich Schröder, Martin H. Beck, Wolfgang Heider, Thomas Anstock | 2002-09-24 |
| 6395852 | Flow enhancer for petroleum middle distillates | Dieter Faul, Bernd Wenderoth, Gabriele Dralle-Voss | 2002-05-28 |
| 6353084 | Biodegradable polyestreramide and a process of preparing | Volker Warzelhan, Edwin Baumann, Ursula Seeliger, Motonori Yamamoto, Gerhard G. Ramlow | 2002-03-05 |
| 6336942 | Processes of treating leather and skins employing polymer compositions | Peter Danisch, Johannes P. Dix, Walter Denzinger, Axel Kistenmacher, Michael Kneip +2 more | 2002-01-08 |
| 6303677 | Biodegradable polymers, preparation thereof and use thereof for producing biodegradable moldings | Volker Warzelhan, Bernd Bruchmann, Ursula Seeliger, Motonori Yamamoto, Peter Bauer | 2001-10-16 |
| 6245410 | Absorber element of superabsorbent foams having anisotropic swelling behavior | Hans-Joachim Hähnle, Manfred Walter, Jurgen Tropsch, Jens Kremeskotter, Thomas Anstock | 2001-06-12 |
| 6201034 | Biodegradable polymers, the production thereof and the use thereof for producing biodegradable moldings | Volker Warzelhan, Bernd Bruchmann, Ursula Seeliger, Motonori Yamamoto, Peter Bauer | 2001-03-13 |
| 6174929 | Water-absorbent cross-linked polymers in foam form | Hans-Joachim Hähnle, Manfred Walter, Jurgen Tropsch, Jens Kremeskotter, Thomas Anstock | 2001-01-16 |
| 6172028 | Detergent and tableware cleaner | Richard Baur, Werner Bertleff, Birgit Potthoff-Karl, Beate Ehle, Matthias Kroner | 2001-01-09 |
| 6136873 | Water-absorbing, expanded, crosslinked polymers, the production and use thereof | Hans-Joachim Hähnle, Manfred Walter, Jurgen Tropsch, Thomas Anstock | 2000-10-24 |
| 6114042 | Biodegradable polymers, the production thereof and use thereof for producing biodegradable moldings | Volker Warzelhan, Bernd Bruchmann, Ursula Seeliger, Motonori Yamamoto, Peter Bauer | 2000-09-05 |
| 6071994 | Formaldehyde-free aqueous binders | Rainer Hummerich, Axel Kistenmacher, Walter Denzinger, Bernd Reck, Manfred Weber | 2000-06-06 |
| 6018004 | Biodegradable polymers, preparation thereof and use thereof for producing biodegradable moldings | Volker Warzelhan, Bernd Bruchmann, Ursula Seeliger, Motonori Yamamoto, Peter Bauer | 2000-01-25 |
| 6001798 | Use of modified polyaspartic acids in washing agents | Richard Baur, Werner Bertleff, Hans-Ulrich Jager, Angelika Funhoff, Matthias Kroner | 1999-12-14 |
| 5888959 | Preparation of polycondensates of aspartic acid and use of the polycondensates | Matthias Kroner | 1999-03-30 |
| 5886137 | Preparation of salts of polyaspartic acid and their use in detergents and cleaners | Matthias Kroner, Uwe Strotmann, Volker Schwendemann, Thomas A. Meyer, Alfons Ludwig | 1999-03-23 |