Issued Patents 2020
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10753321 | Hollow filter element, filter housing, and filter | Nadine Sorger, Pedro Miguel Pereira Madeira | 2020-08-25 |
| D890316 | Air filter element | Pedro Miguel Pereira Madeira, Nadine Donauer | 2020-07-14 |
| 10702820 | Filter element, in particular for gas filtration | Pedro Miguel Pereira Madeira, Michael Heim, Nadine Donauer, Martin Wuebbeling | 2020-07-07 |
| 10561969 | Filter element having supporting elements, filter having a filter element, and filter housing of a filter | Nadine Sorger, Mario Rieger, Werner Blossey, Markus Nefzer, Robert Hasenfratz +1 more | 2020-02-18 |