Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6235218 | Process for preparing N-alkyl ammonium acetonitrile compounds | Ulrich Annen, James E. Deline, Lafayette D. Foland, Kevin A. Klotter, Josef Muller +7 more | 2001-05-22 |
| 5763639 | Process for producing quarternary glycine nitriles | Ulrich Annen, Hans-Peter Seelmann-Eggebert, Reinhard Muller | 1998-06-09 |
| 5611906 | Preparation of N-allyl compounds | Bernd Burkhart, Alfred Oftring, Ulrich Schroeder | 1997-03-18 |
| 5606067 | Preparation of N-allyl compounds | Bernd Burkhart, Alfred Oftring, Ulrich Schroeder | 1997-02-25 |
| 4705649 | Preparation of acyloxybenzenesulfonic acids and their alkali metal and alkaline earth metal salts | Wolf-Dieter Balzer, Hans-Heinrich Bechtolsheimer, Karl-Heinz Beyer, Rolf Fikentscher, Johannes Perner +1 more | 1987-11-10 |
| 4701269 | Waterproofing leather and skins | Herbert Bay, Guenter Eckert | 1987-10-20 |
| 4695412 | Preparation of acyloxybenzenesulfonic acids and their alkali metal and alkaline earth metal salts | Wolf-Dieter Balzer, Hans-Heinrich Bechtolsheimer, Karl-Heinz Beyer, Rolf Fikentscher, Johannes Perner +1 more | 1987-09-22 |
| 4693848 | Preparation of alkali metal and alkaline earth metal salts of acyloxybenzenesulfonic acids | Wolf-Dieter Balzer, Hans-Heinrich Bechtolsheimer, Karl-Heinz Beyer, Rolf Fikentscher, Johannes Perner +1 more | 1987-09-15 |
| 4588531 | Preparation of alkali metal and alkaline earth metal salts of acyloxybenzenesulfonic acids | Wolf-Dieter Balzer, Hans-Heinrich Bechtolsheimer, Karl-Heinz Beyer, Rolf Fikentscher, Johannes Perner +1 more | 1986-05-13 |
| 4350531 | Printing pastes with foam inhibitors | Harry Distler, Guenter Uhl | 1982-09-21 |
| 4349669 | Purification of alkylglycosides by distillative removal of unconverted alcohols | Erhard Klahr, Wolfgang Trieselt, Horst Trapp | 1982-09-14 |
| 4344862 | Reaction products of sulfonamido-carboxylic acids or carboxamido-carboxylic acids with alkanolamines, and their use as low-foaming corrosion inhibitors | Elmar Getto, Albert Hettche | 1982-08-17 |
| 4321412 | Preparation of aromatic aldehydes by the Sommelet reaction | Werner Schoch, Michael Kroener | 1982-03-23 |
| 4242187 | Preparation of alkanes substituted by chlorine atoms and/or sulfochloride groups | Helmut Schlecht, Volkmar Weberndoerfer | 1980-12-30 |
| 4229174 | Dispersant for textile dyeing and optical brightening | Paul Boerzel, Peter Freyberg, Norbert Greif | 1980-10-21 |