Issued Patents 1997
Showing 1–2 of 2 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, Norbert Schaefer, Juergen Haerer | 1997-11-25 |
| 5616550 | Process for the continuous production of a granular detergent | Hans-Friedrich Kruse, Thomas Holderbaum, Jochen Jacobs | 1997-04-01 |