Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9920414 | Method for producing a ceramic layer on a surface formed from an Ni base alloy | Karl Thomas Fehr, Yaping Ye | 2018-03-20 |
| 9297629 | Contour standard having a rotationally symmetrical calibration region, use of the standard and method for calibrating and/or monitoring a contour measuring instrument | Thomas Kohler | 2016-03-29 |
| 8771374 | Method for the production of leather, copolymers that are suitable therefor, and further uses thereof | Markus Brym, Audrey Renoncourt, Stephan Huffer, Ulrike Mahn, Edward Bohres +3 more | 2014-07-08 |
| 7728072 | Epichlorohydrin amine polymers used for treating the surface of leather | Stephan Hueffer, Juergen Decker, Guenter Scherr, Oliver Reese | 2010-06-01 |
| 7354457 | Tanning agent and curing agent based on dialdehydes | Stephan Hueffer, Gunther Pabst, Tilman Taeger, Stefan Schroeder | 2008-04-08 |
| 7093463 | Method and device for producing powders that consist of substantially spherical particles | Andreas Emmel | 2006-08-22 |
| 6881356 | Method for producing tanning agents containing sulphone | Gunther Pabst, Jurgen Kast, Jürgen Werner | 2005-04-19 |
| 6805726 | Method for producing a powder | — | 2004-10-19 |
| 6652597 | N-vinyl-containing polymeric tanning materials | Anton Negele, Axel Kistenmacher, Georg Igl | 2003-11-25 |
| 6316533 | Composition for treating tanned leather, and its preparation | Georg Igl, Thomas Grosser, Adolf Stubinger, Jürgen Werner, Erhard Guenther | 2001-11-13 |
| 6200640 | Polymer composition and process for treating leather and fur skins | Michael Kneip, Axel Kistenmacher, Peter Danisch | 2001-03-13 |
| 6033442 | Use of aqueous solutions or dispersions of copolymers of carboxyl-group-containing monomers, ethylenically unsaturated acetals, ketals or orthocarboxylic acid esters and optionally other copolymerizable monomers as leather tanning agents | Walter Denzinger, Axel Kistenmacher, Michael Kneip, Norbert Greif, Knut Oppenlander | 2000-03-07 |
| 5741947 | Preparation of alkoxylation products in the presence of mixed hydroxides modified with additives | Bernd Burkhart, Guenter Lauth, Horst Trapp, Alfred Oftring | 1998-04-21 |
| 5714560 | Water-soluble or water-dispersible graft polymers of proteins as leather tanning agents | Walter Denzinger, Axel Kistenmacher, Heinrich Hartmann, Gunter Bernhardt | 1998-02-03 |
| 5585472 | Preparation of alkyl glycosides | Helmut Wolf | 1996-12-17 |
| 5576407 | Copolymers of hydroxyalkyl vinyl ethers for use in detergents and cleaning agents | Matthias Kroner, Heinrich Hartmann, Richard Baur, Paul Diessel, Hans-Ulrich Jaeger +2 more | 1996-11-19 |
| 5554742 | Preparation of alkyl glycosides | Alfred Oftring, Georg Schuh, Helmut Wolf, Rudolf Alt, Hans-Heinrich Bechtolsheimer +1 more | 1996-09-10 |
| 5539134 | Process for the preparation of N-alkanoyl-polyhydroxyalkylamines | Beate Strecker, Helmut Wolf, Alfred Oftring, Hans-Heinrich Bechtolsheimer, Dieter Hertel | 1996-07-23 |
| 5498704 | Preparation of alkyl glycosides | Alfred Oftring, Guenter Oetter, Richard Schmidt, Wolfgang Klotz | 1996-03-12 |
| 5206443 | Alkanediol bisacetals | Richard Baur, Helmut Guembel, Alfred Oftring, Johannes Perner | 1993-04-27 |
| 5126441 | Bisglycosides | Richard Schmidt, Karin Jankowski, Andreas Terjung | 1992-06-30 |
| 5126493 | Alkoxylation of active hydrogen compounds | Wolfgang Hoelderich, Jochen Houben, Michael Gates Kinnaird | 1992-06-30 |
| 4799149 | Hybrid associative memory composed of a non-associative basic storage and an associative surface, as well as method for searching and sorting data stored in such a hybrid associative memory | — | 1989-01-17 |
| 4525849 | Data transmission facility between two asynchronously controlled data processing systems with a buffer memory | — | 1985-06-25 |