Issued Patents All Time
Showing 51–57 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8287612 | Filter element and filter system | Eric Gillenberg, Friedrich Kupfer, Oliver Steins | 2012-10-16 |
| 8216332 | Filter with a filter housing | Edvard Kopec | 2012-07-10 |
| 8152876 | Filter element having V-seal | Eric Gillenberg, Oliver Steins | 2012-04-10 |
| 8147576 | Filter element having serrated seal | Eric Gillenberg, Oliver Steins | 2012-04-03 |
| 8142533 | Filter element and filter system | Eric Gillenberg, Friedrich Kupfer, Oliver Steins | 2012-03-27 |
| 7658777 | Filter element and filter system for the intake air of an internal combustion engine | Edvard Kopec, Oliver Steins, Ralf Poh | 2010-02-09 |
| 7442221 | Filter element | Edvard Kopec | 2008-10-28 |