Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7871971 | Machine dishwashing rinse agents and methods of using the same | Ansgar Behler, Karl Schmid, Michael Neuss | 2011-01-18 |
| 7332466 | Lightly-foaming tenside mixtures with hydroxy mixed ethers | Karl Schmid | 2008-02-19 |
| 6732748 | Clear rinsing agents | Joerg Kahre, Michael Elsner, Karl Schmid | 2004-05-11 |
| 6683035 | Gel compositions containing alkoxylated carboxylic acid esters, their use in cleaning toilets and toilet cleaning products containing the same | Ansgar Behler, Jutta Stute, Ditmar Kischkel | 2004-01-27 |
| 6660706 | General purpose cleaners | Ansgar Behler, Karl Schmid, Michael Neuss | 2003-12-09 |
| 6602838 | Hand dishwashing liquid comprising an alkoxylated carboxylic acid ester | Ansgar Behler, Michael Neuss, Karl Schmid, Michael Elsner | 2003-08-05 |
| 6521578 | Cleaning agents for hard surfaces | Jutta Stute, Ditmar Kischkel, Antonino Burgo | 2003-02-18 |
| 6384009 | Use of alkoxylated carboxylic acid esters for reducing viscosity of aqueous surfactant systems | Ansgar Behler, Michael Neuss, Karl Schmid | 2002-05-07 |
| 6057375 | Use of alkoxylation products of epoxidized fats as antifoaming agents | Horst-Werner Wollenweber, Klaus Hornfeck, Dieter Kaps, Bernhard Nellessen, Wolfgang Drees +1 more | 2000-05-02 |
| 5914006 | Process for controlling the deposit of adhesive impurities from paper material suspensions | Bernhard Nellessen, Klaus Hornfeck, Berthold Schreck, Peter Daute | 1999-06-22 |
| 5545332 | Process for dewatering fine-particle solids suspensions | Gerhard Stoll, Peter Daute | 1996-08-13 |
| 5540336 | Method of producing iron ore concentrates by froth flotation | Berthold Schreck | 1996-07-30 |
| 5492631 | Process for dewatering fine-particle solids suspensions using dialkyl carbonates | Alfred Westfechtel, Walter Knoerr | 1996-02-20 |
| 5441156 | Process and recovering minerals from non-sulfidic ores by flotation | Bernd Fabry, Hans-Christian Raths, Frank Wangemann, Heinz Mueller | 1995-08-15 |
| 5372727 | Auxiliaries for the filtration and/or dewatering of mineral and coal suspensions | Horst-Dieter Speckmann, Wolfgang von Rybinski, Dieter Koeppl | 1994-12-13 |
| 5215669 | Use of mixed hydroxyethers as auxiliaries for the dehydration of solids | Maria Liphard, Gilbert Schenker | 1993-06-01 |
| 5108585 | Flotation of non-sulfidic ore with a glycosidic collector | Wolfgang von Rybinski, Manfred Biermann, Harald Schnegelberger | 1992-04-28 |
| 4995998 | Surfactant mixtures as collectors for the flotation of non-sulfidic ores | Wolfgang von Rybinski | 1991-02-26 |
| 4956124 | Bicyclic decanedioic acids, a process for their production, and their use as flotation aids | Horst Eierdanz, Paul Schulz, Wolfgang von Rybinski | 1990-09-11 |
| 4925559 | Use of derivatives of tricyclo-(5.2.1.02,6)-dec-3-ene as frothers in the flotation of coal and ores | Manfred Biermann, Horst Eierdanz | 1990-05-15 |
| 4814070 | Alkyl sulfosuccinates based on alkoxylated fatty alcohols as collectors for non-sulfidic ores | Wolfgang von Rybinski, Uwe Ploog | 1989-03-21 |
| 4790931 | Surfactant mixtures as collectors for the flotation of non-sulfidic ores | Wolfgang von Rybinski | 1988-12-13 |
| 4790932 | N-alkyl and N-alkenyl aspartic acids as co-collectors for the flotation of non-sulfidic ores | Beatrix Kottwitz, Wolfgang von Rybinski | 1988-12-13 |
| 4789466 | Method of separating non-sulfidic minerals by flotation | Wolfgang von Rybinski | 1988-12-06 |
| 4702823 | Phosphinic acid adducts with maleic acid semiesters, a process for their production and their use | Holger Tesmann, Helmut Blum | 1987-10-27 |