Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6800600 | Cleaning agent containing alcoholate | Werner Strothoff, Guenter Hellmann | 2004-10-05 |
| 6718991 | Process and an arrangement for machine dishwashing | Jacques Breyer, Guenter Hellmann, Klaus Wilbert | 2004-04-13 |
| 6331518 | Compact cleaner containing surfactants | Guenter Hellmann | 2001-12-18 |
| 6180578 | Compact cleaning agent for industrial dish washing machines | Guenter Hellmann, Klaus Wilbert | 2001-01-30 |
| 6001791 | Paste-form washing-up agent and its manufacture | Guenter Hellmann, Klaus Wilbert | 1999-12-14 |
| 5958862 | Water containing paste-form detergent composition based on sodium hydroxide | Guenter Hellmann, Klaus Wilbert, Horst Pruehs | 1999-09-28 |
| 4820440 | Phosphate-free dishwasher detergent | Norbert Schindler | 1989-04-11 |