Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6715822 | Vehicle roof | Karl-Heinz Lumpe, Michael Gross | 2004-04-06 |
| 6676203 | Vehicle roof | Karl-Heinz Lumpe, Michael Kyle Ross | 2004-01-13 |
| 6616221 | Vehicle roof | Karl-Heinz Lumpe, Michael Gross | 2003-09-09 |