Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8465564 | Filter medium | Christian Hassman, Hans-Juergen Meitinger | 2013-06-18 |
| 7494558 | Laminate with improved properties | Werner Groh, Michael Schops, Hermann Weizenegger | 2009-02-24 |
| 7199065 | Non-woven laminate composite | Werner Groh, Michael Schops | 2007-04-03 |