Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6641623 | Process for producing a paraffin-based object and a paraffin-based object | Norbert Matzat, Michael Matthai | 2003-11-04 |
| 6224641 | Process for producing a paraffin-based object and such an object | Norbert Matzat, Michael Matthai | 2001-05-01 |