Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9597621 | Multi-ply filter medium | Christian Hassmann | 2017-03-21 |
| 8147584 | Filter medium | Christian Hassmann, Hans-Jurgen Meitinger, Kurt Ploetz, Michael Schoeps | 2012-04-03 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9597621 | Multi-ply filter medium | Christian Hassmann | 2017-03-21 |
| 8147584 | Filter medium | Christian Hassmann, Hans-Jurgen Meitinger, Kurt Ploetz, Michael Schoeps | 2012-04-03 |