Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10335721 | Filter element for a filter device | Norbert Sann | 2019-07-02 |
| 10201769 | Filter device | Norbert Sann | 2019-02-12 |
| 9643109 | Filter device | Norbert Sann | 2017-05-09 |
| 9393508 | Filter device | Norbert Sann | 2016-07-19 |