Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8349134 | Method for producing high dry strength paper, paperboard or cardboard | Anton Esser, Hans-Joachim Haehnle, Martin Ruebenacker, Norbert Schall, Josef Neutzner +2 more | 2013-01-08 |
| 8097126 | Aqueous composition and use thereof for paper production | Hans-Joachim Haehnle, Anton Esser, Volker Braig, Rainer Blum, Peter G. Baumann +1 more | 2012-01-17 |
| 7951265 | Aqueous slurries of finely divided fillers, their preparation and their use for the production of filler-containing papers | Anton Esser, Volker Braig, Martin Wendker, Rainer Blum, Peter G. Baumann +2 more | 2011-05-31 |
| 7888524 | Process for preparing sulfuric monoesters from amino alkanols | Reinhard W. Hoffmann, Ekhard Winkler, Manfred Winter | 2011-02-15 |
| 7549859 | Installation and process for calcining a mineral load containing a carbonate in order to produce a hydraulic binder | — | 2009-06-23 |
| 6475348 | Mixture of substances containing compounds with vinyl groups and stabilizers | Heinz Friedrich Sutoris, Konrad Mitulla, Claus Kaliba | 2002-11-05 |
| 6379588 | Stabilized monomer composition | Heinz Friedrich Sutoris, Andreas Koch, Alexander Aumuller, Manfred Niessner | 2002-04-30 |
| 6147145 | Stabilized monomer composition | Alexander Aumuller, Andreas Koch, Heinz Friedrich Sutoris, Manfred Niessner | 2000-11-14 |
| 6033530 | Continuous distillation of thermolabile monomers | Manfred Winter | 2000-03-07 |
| 5951828 | Continuous distillation of thermolabile monomers | Manfred Winter, Michael Kroner | 1999-09-14 |
| 5935896 | Catalyst supports and catalysts for dehydrocyanation reactions and processes for producing them | Peter Trubenbach, Ekkehard Schwab, Michael Kroner | 1999-08-10 |
| 5713734 | Equipment for and method of calcination of mineral materials with reduced emission of nitrogen oxides | Michel Makris, Jean-Luc Sue | 1998-02-03 |
| 5326909 | Stabilization of monomeric N-vinylformamide | Michael Kroener | 1994-07-05 |
| 5245058 | Preparation of 1-nitroanthraquinone-2-carboxylic acids | Helmut Hagen, Michael Acker, Udo Bergmann | 1993-09-14 |
| 5198575 | Preparation of nitrobenzoic and anthranilic acids | Helmut Hagen | 1993-03-30 |
| 5196573 | Process for the preparation of sulfonated anthranilic acids | Manfred Patsch, Klaus Pandl, Helmut Hagen | 1993-03-23 |
| 5130434 | Preparation of 3-methylquinoline-8-carboxylic acid | Helmut Hagen, Karlheinz Arbogast | 1992-07-14 |
| 5006659 | Preparation of 7-chloroquinoline-8-carboxylic acids | Helmut Hagen, Heinz Eilingsfeld | 1991-04-09 |
| 4957608 | Preparation of 8-bromomethyl-3-methylquinoline compounds | Helmut Hagen, Rolf-Dieter Kohler | 1990-09-18 |
| 4845226 | Preparation of 8-bromomethyl-3-methylquinoline compounds | Helmut Hagen, Rolf-Dieter Kohler | 1989-07-04 |