Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6342625 | Amphiphilic compounds with at least two hydrophilic and at least two hydrophobic groups based on amides | Klaus Kwetkat | 2002-01-29 |
| 6121482 | Amphiphilic compounds with at least two hydrophilic and at least two hydrophobic groups based on dicarboxamides | Klaus Kwetkat, Herbert Koch | 2000-09-19 |
| 5997610 | Amphiphilic compounds with at least two hydrophilic and at least two hydrophobic groups based on dicarboxylic acid diamides | Klaus Kwetkat | 1999-12-07 |
| 5962726 | Amphiphilic compounds with several hydrophilic and hydrophobic groups based on alkoxylated amines and/or amides and di-, oligo- or polycarboxylic acids | Klaus Kwetkat, Herbert Koch | 1999-10-05 |
| 5723590 | Acid-cleavable surfactants based on alkylglycosides | Herbert Koch, Wolfgang Schroeder | 1998-03-03 |
| 5574120 | Process for the preparation of dicarboxylic acid terpolymers for detergents and cleaning agents | Klaus Heidel, Frank Krause | 1996-11-12 |
| 5023018 | Use of polyhydroxyalkylamine-N,N-dicarboxylic acids and their salts as builders in detergents and cleaning agents | Heike Kelkenberg | 1991-06-11 |
| 5009814 | Use of n-polyhydroxyalkyl fatty acid amides as thickening agents for liquid aqueous surfactant systems | Heike Kelkenberg, Klaus Engel | 1991-04-23 |
| 4963274 | Concentrated fabric conditioners | Jan Schut, Werner Friedrich, Heinz Riemer, Hauke Steinhardt | 1990-10-16 |
| 4882091 | Use of polyhydroxyalkylamine-N-N-dicarboxylic acids and their salts as builders in detergents and cleaning agents | Heike Kelkenberg | 1989-11-21 |
| 4830771 | Process for the preparation of trialkanolamine di(fatty acid) esters, and the use thereof for softening fabrics | Jan Schut | 1989-05-16 |