Issued Patents All Time
Showing 25 most recent of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6201160 | Preparation of alcohols | Martin Brudermuller, Matthias Irgang, Martin Schmidt-Radde, Franz Merger, Detlef Kratz +5 more | 2001-03-13 |
| 6166207 | Preparation of bicyclic amidines and diazacycloalkenes | Wolfgang Friedrich, Heinz-Josef Kneuper, Karsten Eller | 2000-12-26 |
| 6114567 | Preparation of aliphatic alpha, omega-aminonitriles | Klemens Flick, Johann-Peter Melder, Werner Schnurr, Klaus Ebel, Wolfgang Harder +2 more | 2000-09-05 |
| 6022999 | Preparation of 3-aminomethyl-3,5,5-trimethylcyclohexylamine having a cis/trans isomer ratio of at least 70:30 | Guido Voit, Boris Breitscheidel, Hermann Luyken, Karl-Heinz Ross, Peter Wahl | 2000-02-08 |
| 6018074 | Process for the preparation of polyalcohols | Detlef Kratz, Achim Stammer, Martin Brudermuller | 2000-01-25 |
| 6013803 | Sterically hindered 4-amino-piperidine with a low dimer content, its production and use | Manfred Julius, Harald Rust, Alfred Krause, Hardo Siegel, Wolfgang Siegel | 2000-01-11 |
| 6011157 | Process for purifying sterically hindered 4-amino piperidines | Manfred Julius, Harald Rust, Alfred Krause, Hardo Siegel, Wolfgang Siegel | 2000-01-04 |
| 5917023 | Reductive coupling of nitrobenzene or nitrobenzenes substituted on the nucleus to give the corresponding azobenzenes and azoxybenzenes by means of redox catalysts | Alfred Hagemeyer, Daniel Heineke, Guido Voit | 1999-06-29 |
| 5917080 | Preparation of 2-cyano-3,3-diarylacrylic esters | Martin Holderbaum, Karl Beck, Alexander Aumuller, Guido Voit | 1999-06-29 |
| 5840981 | Process for producing N-methyl-2(3,4 dimethoxyphenyl)-ethylamine | Eberhard Fuchs, Horst Zimmermann, Boris Breitscheidel, Rainer Becker, Horst Nauhauser | 1998-11-24 |
| 5801268 | Preparation of aliphatic alpha omega-aminonitriles | Klemens Flick, Johann-Peter Melder, Werner Schnurr, Klaus Ebel, Wolfgang Harder +2 more | 1998-09-01 |
| 5801267 | Preparation of aliphatic alpha, omega-aminonitriles | Klemens Flick, Johann-Peter Melder, Werner Schnurr, Klaus Ebel, Wolfgang Harder +2 more | 1998-09-01 |
| 5756808 | Preparation of aliphatic, alpha omega-aminonitriles | Klemens Flick, Johann-Peter Melder, Werner Schnurr, Klaus Ebel, Wolfgang Harder +2 more | 1998-05-26 |
| 5756839 | Process for preparing D,L-aspartic acid from ammonium salts of the maleic acid | Detlef Kratz, Rudolf Bazner, Matthias Kroner, Uwe Pressler | 1998-05-26 |
| 5756845 | Preparation of 3-aminomethyl-3,5,5-trimethylcyclohexylamine | Guido Voit, Boris Breitscheidel, Wolfgang Harder, Hermann Luyken, Axel Paul +2 more | 1998-05-26 |
| 5739324 | Preparation of caprolactam | Eberhard Fuchs | 1998-04-14 |
| 5728317 | Polyisocyanate compositions having a long shelf life and obtainable by phosgene-free methods, their preparation and their use | Gerhard Laqua, Franz Merger, Ursula Siebenhaar, David Agar | 1998-03-17 |
| 5717090 | Simultaneous preparation of caprolactam and hexamethylenediamine | Peter Bassler, Hermann Luyken, Gunther Achhammer, Eberhard Fuchs, Rolf Fischer +1 more | 1998-02-10 |
| 5705699 | Preparation of 3-aminomethyl-3,5,5-trimethylcyclohexylamine | Guido Voit | 1998-01-06 |
| 5696048 | Cobalt catalysts | Boris Breitscheidel, Peter Polanek, Guido Voit, Gerd Linden, Michael Hesse | 1997-12-09 |
| 5684201 | Preparation of aliphatic and cycloaliphatic oximes | Norbert Rieber, Peter Lingelbach, Ulrich Müller | 1997-11-04 |
| 5679855 | Preparation of benzophenone imines | Guido Voit, Martin Holderbaum, Alexander Aumuller | 1997-10-21 |
| 5663444 | Preparation of a pure dialkylaminoethanol stable against discoloration | Johann-Peter Melder, Gunther Ruider, Karl-Heinz Ross, Gunter Boettger | 1997-09-02 |
| 5646277 | Preparation of caoprolactam | Eberhard Fuchs | 1997-07-08 |
| 5576449 | Preparation of 2-substituted but-2-ene-1,4-dial-4-acetals and novel hemiacetals of glyoxal monoacetals | J urgen Frank, Johann-Peter Melder, Franz Merger | 1996-11-19 |