Issued Patents All Time
Showing 1–25 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6524392 | Use of water-soluble polymeric polycarboxylates in cleaner formulations with abrasive action | Hartwig Wendt, Thomas Menzel | 2003-02-25 |
| 6160168 | Triphenylphosphine mono and dimethoxy tri-sodium sulphonates | Jorg-Dietrich Jentsch, Thomas Prinz, Birgit Driessen-Holscher, Wilhelm Keim | 2000-12-12 |
| 6153780 | Process for the preparation of octa-2,7-dienyl-1-amine from butadiene and ammonia in the presence of palladium complex catalyst | Jorg-Dietrich Jentsch, Thomas Prinz, Birgit Driessen-Holscher, Wilhelm Keim | 2000-11-28 |
| 6147238 | Process for the preparation of octa-2,7-dienyl-1-amine from butadiene and ammonia in the presence of palladium complex catalyst | Jorg-Dietrich Jentsch, Thomas Prinz, Birgit Driessen-Holscher, Wilhelm Keim | 2000-11-14 |
| 6084113 | Complexes containing tris-(hydroxyalkyl)-phosphines as ligands for telomerizations, as catalysts and new complexes containing tris-(hydroxyalkyl)-phosphines | Birgit Driessen-Holscher, Wilhelm Keim, Thomas Prinz, Jorg-Dietrich Jentsch | 2000-07-04 |
| 6051738 | Process for the preparation of octa-2,7-dienyl-1-amine from butadiene and ammonia in the presence of palladium complex catalyst | Jorg-Dietrich Jentsch, Thomas Prinz, Birgit Driessen-Holscher, Wilhelm Keim | 2000-04-18 |
| 5977053 | Detergents and cleaners containing iminodisuccinates | Torsten Groth, Winfried Joentgen | 1999-11-02 |
| 5834611 | Complexes containing tris-(hydroxyalkyl)-phosphines as ligands for telomerizations, as catalysts and new complexes containing tris-(hydroxyalkyl)-phosphines | Birgit Driessen-Holscher, Wilhelm Keim, Thomas Prinz, Jorg-Dietrich Jentsch | 1998-11-10 |
| 5756846 | Process for the preparation of primary octadienylamines | Birgit Driessen-Holscher, Wilhelm Keim, Thomas Prinz, Jorg-Dietrich Jentsch | 1998-05-26 |
| 5679761 | Iminodisuccinate-containing polymers | Lutz Heuer, Winfried Joentgen, Torsten Groth, Nikolaus Muller, Hermann Uhr +8 more | 1997-10-21 |
| 5599965 | Process for the preparation of dialky carbonates | Zoltan Kricsfalussy, Helmut Waldmann | 1997-02-04 |
| 5594077 | Process for preparing polymers which contain aspartic acid | Torsten Groth, Winfried Joentgen, Paul Wagner, Dorde Jovcic | 1997-01-14 |
| 5583252 | Process for preparing 4,4'-dinitrostilbene-2,2'-disulphonic acid and its salts | Reinhard Schom acker, Helmut Waldmann | 1996-12-10 |
| 5552549 | Process for the dechlorination of chlorinated aromatic compounds | Christian Rasp, Helmut Waldmann | 1996-09-03 |
| 5523452 | Process for preparing dimethyl carbonate | Zoltan Kricsfalussy, Heinrich Steude, Helmut Waldmann, Kaspar Hallenberger, Wolfram Wagner | 1996-06-04 |
| 5504260 | Catalytic oxidation | Zoltan Kricsfalussy, Helmut Waldmann | 1996-04-02 |
| 5493004 | Process for the preparation of polysuccinimide | Torsten Groth, Winfried Joentgen, Dorde Jovcic, Paul Wagner | 1996-02-20 |
| 5463068 | Process for desulphurizing organic mercapto and/or disulphide compounds | Ferdinand Hagedorn, Helmut Fiege | 1995-10-31 |
| 5459273 | Process for the preparation of 2-halogeno-5-cyano pyridines | Helmut Kraus | 1995-10-17 |
| 5371180 | Process for the preparation of polysuccinimide and polyaspartic acid | Torsten Groth, Winfried Joentgen, Gunter Boehmke, Gerd Schmitz | 1994-12-06 |
| 5277566 | Extrusion impregnating device | Gunter Augustin, Georg Hinrichsen | 1994-01-11 |
| 5233072 | Process for the preparation of dialkyl carbonates | Zoltan Kricsfalussy, Helmut Waldmann, Marko Zlokarnik, Reinhard Schomacker | 1993-08-03 |
| 5137938 | Mixture of polyarylene sulphides, glass fibres and maleimides | Burkhard Kohler, Wilfried Cramer, Harald Pielartzik, Wolfgang Wehnert, William C. Bushong +1 more | 1992-08-11 |
| 5089590 | Liquid crystalline compounds, their production and their use as modifiers for polycarbonates, polyester carbonates and polyesters | Harald Pielartzik, Rolf-Volker Meyer, Ralf Dujardin, Axel Schnitzler | 1992-02-18 |
| 5086102 | Mixtures of poly(arylene sulphides), maleamidic acids and glass fibres | Harald Pielartzik, Burkhard Kohler, Wolfgang Jakob, William C. Bushong | 1992-02-04 |