Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5977214 | Process for producing duroplastic molding compounds | Herbert Knorr, Peter Adolphs, Bernd Rau, Bernhard Muller, Michael Hermann | 1999-11-02 |
| 5613263 | Cleaning cloth | — | 1997-03-25 |
| 5575033 | Floor-cleaning appliance | — | 1996-11-19 |
| 5469594 | Cleaning tool | — | 1995-11-28 |