Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6540400 | Cap for bag | Joan Gross, Herbert Ginter | 2003-04-01 |
| 6474568 | Heatable washer system which is intended for a motor vehicle | Lutz Seyfarth | 2002-11-05 |
| 6247653 | Heatable washer system which is intended for a motor vehicle | Lutz Seyfarth | 2001-06-19 |