Issued Patents All Time
Showing 1–25 of 66 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6120562 | Triazine derivatives as fixers in coloring and as cross-linking agents | Manfred Patsch, Reinhold Krallmann, Thomas Grosser | 2000-09-19 |
| 6069161 | Use of aminoisothiazoles as microbicides | John-Bryan Speakman, Dieter Zeller | 2000-05-30 |
| 6063286 | Modified, fine-particle, water-insoluble aziridine polymer and use therefore for removing heavy metals from aqueous solution | Ulrich Steuerle, Hubert Meixner, Michael Ehle, Thomas Greindl, Rainer Betz | 2000-05-16 |
| 6056967 | Method of producing water-soluble condensates and addition products containing amino groups, and use of said condensates and addition products | Ulrich Steuerle, Hubert Meixner, Rainer Dyllick-Brenzinger, Hartmut Kanter, Albert Hettche +2 more | 2000-05-02 |
| 6031064 | Condensation products based on triazines and formaldehyde | Erhard Guenther | 2000-02-29 |
| 6004892 | Fire protection covers made of melamine-formaldehyde resin fibers | Erhard Guenther | 1999-12-21 |
| 6001166 | Aqueous alkyldiketene dispersions and their use as size for paper | Roland Ettl, Primoz Lorencak, Johann Bonn | 1999-12-14 |
| 5977293 | Process for continuous preparation of homopolymers of ethyleneimine | Ulrich Steuerle, Wolfgang Harder | 1999-11-02 |
| 5942588 | Aqueous alkyldiketene dispersions and their use as size for paper | Roland Ettl, Primoz Lorencak, Günter Scherr, Gunther Glas | 1999-08-24 |
| 5939515 | Modified melamine-formaldehyde resins | Erhard Guenther | 1999-08-17 |
| 5851300 | Cationic modification of starch and use of the cationically modified starch | Friedrich Linhart, Andreas Stange, Rudolf Schuhmacher, Heinrich Hartmann, Walter Denzinger +3 more | 1998-12-22 |
| 5837013 | Preparation of colored melamine-formaldehyde condensation products | Erhard Guenther | 1998-11-17 |
| 5744001 | Aqueous pigment slurries for production of filler-containing paper | Friedrich Linhart, Dietmar Moench, Guenter Scherr, Primoz Lorencak | 1998-04-28 |
| 5702517 | Additives for plastics, in particular for PVC | Hubert Meixner, Volker Konigstein | 1997-12-30 |
| 5672721 | Preparation of low-solvent alkyl diketenes | Roland Ettl, Wolfgang Kasel, Matthias Fankhänel | 1997-09-30 |
| 5641855 | Water-soluble condensation products of amino-containing compounds and crosslinkers, preparation thereof and use thereof | Guenter Scherr, Dietmar Moench, Friedrich Linhart, Juergen Weiser | 1997-06-24 |
| 5637704 | Preparation of hydroxyoxaalkylmelamines | Erhard Guenther, Günter Scherr, Manfred Dimmler | 1997-06-10 |
| 5536370 | Condensates of polyalkylenepolyamines, their preparation and their use in papermaking | Guenter Scherr, Primoz Lorencak, Dietmar Moench, Friedrich Linhart, Juergen Weiser | 1996-07-16 |
| 5530031 | Water-insoluble melamine-formaldehyde resins | Erhard Guenther, Uwe Kirchgassner | 1996-06-25 |
| 5484938 | 1-hydroxyimidazole compounds | Ulf Baus | 1996-01-16 |
| 5430186 | Preparation of carboxylic chlorides | Peter Ksoll, Roland Ettl | 1995-07-04 |
| 5393828 | Chemical degradation of cured amino resins | Juergen Weiser, Erwin Hahn | 1995-02-28 |
| 5391363 | Continuous purification of an off-gas composed of CO.sub.2 +HCl+COCl.sub.2 | Peter Ksoll, Peter Wittmer | 1995-02-21 |
| 5382476 | Recycling of cured aminoplast resins | Juergen Weiser, Erwin Hahn | 1995-01-17 |
| 5372609 | Self-tanning, pretanning and assist tanning of pelts and skin pelts and retanning of leather and skin | Juergen Weiser, Hermann Birkhofer, Karl Stork, Ortwin Schaffer | 1994-12-13 |