Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11338237 | Hollow filter element, in particular for gas filtration | Christoph Wittmers, Nadine Donauer, Andreas Franz, Pedro Miguel Pereira Madeira, Joachim-Paul Krieger +3 more | 2022-05-24 |
| 11280299 | Filter element for an engine air filter assembly having a nonwoven pre-filter and related method | Jerome Stiger | 2022-03-22 |