Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8343312 | Polymer-pigment hybrids for use in papermaking | Dieter Meck, Rainer Blum, Ralf Hemel, Norbert Gispert, Juergen Schmidt-Thuemmes +1 more | 2013-01-01 |
| 7541409 | Hydrophobically modified polymers containing vinylamine or ethylenimine units, method for the production thereof, and their use as retention agents | Guenther Grimm, Volker Braig, Simon Champ | 2009-06-02 |
| 7306701 | Production of paper, board and cardboard | Rainer Blum, Ralf Hemel, Rudolf Lorz | 2007-12-11 |
| 7297733 | Aqueous dispersions of water-soluble polymers of N-vinylcarboxamides, their preparation and their use | Anton Negele, Werner Gauweiler, Hubert Meixner, Martin Ruebenacker | 2007-11-20 |
| 7084200 | Aqueous dispersions of water-soluble polymers of N-vinyl carboxylic acid amides, method for the production thereof and their use | Marc Leduc, Stefan Frenzel | 2006-08-01 |
| 7034068 | Aqueous dispersions of water-soluble polymers of N-vinyl carboxylic acid amides, method for the production and use thereof | Anton Negele, Werner Gauweiler, Hubert Meixner, Martin Rubenacker | 2006-04-25 |
| 6969444 | Paper coating slip containing n-vinylformamide | Friedrich Linhart, Bernd Dirks, Heinrich Ullrich, Thierry Blum, Stefan Frenzel +1 more | 2005-11-29 |
| 6746542 | Modifying starch with cationic polymers and use of the modified starches as dry-strength agent | Primoz Lorencak, Andreas Stange, Kurt Diehl | 2004-06-08 |
| 6716311 | Modified cationic polymers, their preparation and their use in papermaking | Jürgen Decker, Anton Esser, Hubert Meixner, Rainer Dyllick-Brenzinger, Martin aus dem Kahmen +1 more | 2004-04-06 |
| 6710175 | Compositions suitable as additives in the paper industry, preparation; use; and, paper comprising such | Kevin R. Anderson, Anton Esser, Lawrence E. Fosdick, Ki-Oh Hwang, John McDonald +4 more | 2004-03-23 |
| 6627455 | Use of fluorescent dyes for surface analysis | Ralf Norenberg, Wolfgang Schrof | 2003-09-30 |
| 6576086 | Method for producing paper, paperboard and cardboard using an uncrosslinked fixing agent during paper stock draining | Roland Ettl, Hubert Meixner, Anton Esser, Rainer Scholz, Ulrich Steuerle +2 more | 2003-06-10 |
| 6541573 | Method for eliminating formamide from polymerizates containing n-vinyl formamide units | Manfred Niessner, Martin Rubenacker | 2003-04-01 |
| 6458348 | Use of water-soluble polymers as biocides | Jurgen Tropsch, Dieter Zeller, Anton Negele, Jürgen Decker | 2002-10-01 |
| 6310261 | Method for the production of aldehydes | Bernhard Geissler, Michael Roper, Edgar Zeller, Rocco Paciello, Jürgen Decker +1 more | 2001-10-30 |
| 6214885 | Use of polymers containing .beta.-hydroxyalkylvinylamine units as biocides | Jurgen Tropsch, Dieter Zeller, Anton Negele, Jürgen Decker | 2001-04-10 |
| 6077460 | Corrosion inhibition | Knut Oppenlander, Günter Oetter, Rudi Kroner, Hans-Jurgen Jatzek, Klaus Taeger | 2000-06-20 |