Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6554966 | Process for preparing essentially formic acid-free N-alkyl-N′-methylalkyleneureas | Andreas Kramer, Johann-Peter Melder, Heinz Rutter, Günter Riewe, Wolfgang Siegel | 2003-04-29 |
| 6291731 | Continuous method for producing propargyl chloride | Armin Stamm, Jochem Henkelmann | 2001-09-18 |
| 6262300 | Method for producing chlorocarboxylic acid chlorides | Armin Stamm, Theodor Weber, Jochem Henkelmann | 2001-07-17 |
| 6245954 | Method of producing alkyl chloride, alkenyl chloride and alkinyl chloride | Armin Stamm, Theodor Weber, Jochem Henkelmann | 2001-06-12 |
| 6242639 | Preparation of neopentyl glycol hydroxyprivalate granules | Bernd Eck, Dieter Baumann, Bernhard Maltry | 2001-06-05 |
| 6162939 | Method for producing thiochloroformates | Armin Stamm, Theodor Weber, Jochem Henkelmann | 2000-12-19 |
| 6153784 | Removal of halides from halide-containing nitrile mixtures | Heinz-Josef Kneuper, Horst Neuhauser, Johann-Peter Melder, Andreas Henne, Karl-Heinz Ross +1 more | 2000-11-28 |
| 5965032 | Purification of .alpha.-, .beta.- or .gamma.-substituted carboxylic acids | Markus Frede, Christian Dully, Klaus Ditrich, Johann-Peter Melder, Achim Weitze | 1999-10-12 |
| 5951829 | Separation of heteropoly compounds from polyethers, polyesters and polyether esters | Rolf Fischer, Gerhard Jeschek, Herbert Muller | 1999-09-14 |
| 5904814 | Removal of water and ammonia from benzophenone imine reactor effluents | Guido Voit, Matthias Dernbach, Karl Beck, Martin Holderbaum | 1999-05-18 |
| 5824769 | Polyether, polyester and polyether ester purification process | Rolf Fischer | 1998-10-20 |
| 5770747 | Preparation of 1,2-butylene oxide | Peter Lingelbach, Joachim Roser, Christoph Sigwart, Werner Schnurr | 1998-06-23 |
| 5741888 | Removal of heteropoly compounds from polyethers, polyesters and polyether esters | Rolf Fischer | 1998-04-21 |
| 4431585 | Water-insoluble azo dyestuffs, processes for their manufacture and their use for dyeing and printing synthetic hydrophobic fiber material | Horst Tappe, Ulrich Buhler, Kurt Roth, Uwe Kosubek | 1984-02-14 |
| 4349348 | Process for printing synthetic, hydrophobic fiber material | Horst Tappe, Horst Kindler, Kurt Roth | 1982-09-14 |
| 4265629 | Process for the production of resist effects on polyester/cellulose mixed fiber textiles | Joachim Ribka, Horst Tappe, Kurt Roth | 1981-05-05 |
| 4252530 | Process for dyeing and printing synthetic hydrophobic fiber material | Joachim Ribka, Horst Tappe, Kurt Roth | 1981-02-24 |