Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6287347 | Method for washing clothes | Ralf Krack, Alfred Laufenberg, Joerg Brockhaus, Christine Schnepf, Thomas Merz | 2001-09-11 |
| 6204231 | Cleaning agent for food-industry facilities, its use and method of cleaning such facilities using the agent | Anja Patten, Ralf Krack | 2001-03-20 |
| 5888311 | Process for cleaning factory equipment with integrated prerinse | Alfred Laufenberg, Ralf Krack | 1999-03-30 |