Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5691293 | Stable, dual-function, phosphate-, metasilicate- and polymer-free low-alkali detergent tablets for dishwashing machines and a process for their production | Hans-Friedrich Kruse, Hans-Josef Beaujean, Norbert Schaefer | 1997-11-25 |
| 5691300 | Rinse aids for the machine washing of hard surfaces | Bernd Fabry, Birgit Burg, Marica Nejtek, Peter Jeschke, Udo Hees | 1997-11-25 |
| 5602093 | Dishwashing machine rinse aids containing APG, alkyl polyglycol ether and organic carboxylic acid | Theodor Altenschoepfer, Peter Jeschke, Christian Nitsch | 1997-02-11 |