Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9540597 | Process for the preparation of a powder comprising one or more complexing agent salts | Frank Mrzena, Ullrich Menge, Michael Schoenherr | 2017-01-10 |
| 9487845 | Process for the acid digestion of metal-containing compounds | Helmut Witteler, Bernd Laubusch, Hans-Peter Seelmann-Eggebert | 2016-11-08 |
| 8927669 | Copolymers, method for producing them and their use for treating surfaces | Thomas Pfeiffer, Helmut Witteler, Frank Dietsche, Frank-Olaf Mähling, Andreas Fechtenkotter +2 more | 2015-01-06 |
| 8859106 | Use of polypeptides in the form of adhesive agents | Hermann Seyffer, Karl-Heinz Schumacher, Hans-Georg Lemaire, Ulf Baus, Thomas Subkowski +2 more | 2014-10-14 |
| 8785685 | Process for preparing aminopolycarboxylates proceeding from amino acids | Robert Baumann, Markus Christian Biel, Axel Franzke, Paul Klingelhoefer, Alfred Oftring | 2014-07-22 |
| 8748366 | Process for the preparation of a spray powder comprising one or more glycine-N,N-diacetic acid derivatives and use of the spray powder for producing compression agglomerates | Frank Mrzena, Michael Schoenherr, Robert Heinz | 2014-06-10 |
| 8568522 | Method of passivating metallic surfaces by means of copolymers having phosphoric acid and/or phosphonic acid groups | Frank Klippel, Alexander Gothlich, Gunnar Schornick, Dietrich Fehringer, Helmut Witteler +1 more | 2013-10-29 |
| 8420174 | Polymer composition for corrosion protection | Alexander Goethlich, Frank Klippel, Gunnar Schornick, Guido Vandermeulen, Helmut Witteler +4 more | 2013-04-16 |
| 7905964 | Method for the passivation of metal surfaces with compositions comprising polymers with acid groups and waxes | Helmut Witteler, Walter Bertkau, Alexander Gothlich | 2011-03-15 |
| 7749337 | Method for the passivation of metal surfaces with polymers containing acid groups | Helmut Witteler, Walter Bertkau, Alexander Gothlich, Jens Haas, Frank Klippel +1 more | 2010-07-06 |
| 7638469 | Methods of increasing permeability in carbonatic rock formations with alkanesulfonic acids | Marcus Guzmann, Helmut Witteler, Uwe Ossmer | 2009-12-29 |
| 7217820 | Cosmetic or pharmaceutical preparations which comprise enaminotriazines as light protection agents, and novel enaminotriazines | Kristin Tiefensee, Thomas Wunsch | 2007-05-15 |
| 7199181 | Stabilising composition II | Manfred Appel | 2007-04-03 |
| 7196135 | Stabilizing composition I | Manfred Appel | 2007-03-27 |
| 7011772 | UV absorbing mixture with textile fiber affinity | Gerhard Wagenblast, Jürgen Detering, Thorsten Habeck | 2006-03-14 |
| 6887460 | Cosmetic or pharmaceutical preparations which comprise enaminotriazines as light protection agents, and novel enaminotriazines | Kristin Tiefensee, Thomas Wunsch | 2005-05-03 |
| 6488915 | Use of sunscreen combinations which comprise, as essential constituent, 2-(4-alkoxyanilinomethylene) malonic dialkyl esters as photostable UV filters in cosmetic and pharmaceutical preparations | Kristin Tiefensee, Thomas Wunsch | 2002-12-03 |
| 6458342 | Use of sunscreen combinations comprising, as essential constituent, 2,2′-p-phenylenebis (3,1-benzoxazin-4-one) as photostable UV filters in cosmetic and pharmaceutical preparations | Kristin Tiefensee, Thomas Wunsch | 2002-10-01 |
| 6416773 | Cosmetic or dermatological light protection agent preparations | Volker Schehlmann, Thomas Wunsch, Wilma M. Dausch | 2002-07-09 |
| 6391289 | Use of sunscreen combinations comprising, as essential constituent, 4,4′-diarylbutadienes as photostable UV filters in cosmetic and pharmaceutical preparations | Thorsten Habeck, Thomas Wunsch | 2002-05-21 |
| 6387355 | Use of sunscreen combinations comprising, as essential constituent, amino-substituted hydroxybenzophenones as photostable UV filters in cosmetic and pharmaceutical preparations | Thorsten Habeck, Thomas Wunsch | 2002-05-14 |