Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8147584 | Filter medium | Christian Hassmann, Kurt Ploetz, Juergen Umminger, Michael Schoeps | 2012-04-03 |
| 7993427 | Filter medium | Christian Hassmann, Kurt Plotz, Jürgen Umminger, Michael Schops | 2011-08-09 |