Issued Patents All Time
Showing 26–50 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D834166 | Filter housing | Michael Kaufmann, Peter Theiss | 2018-11-20 |
| D817468 | Filter housing | Michael Kaufmann, Peter Theiss | 2018-05-08 |
| 9657695 | Air filter element | Michael Kaufmann | 2017-05-23 |
| 9649585 | Filter system with sensor socket | Oliver Steins, Michael Kaufmann | 2017-05-16 |
| 9623358 | Filter system having a support tube | Michael Kaufmann, Reinhard Oelpke | 2017-04-18 |
| 9587598 | Filter housing and filter assembly | Michael Kaufmann, Karlheinz Muenkel, Manfred Winter | 2017-03-07 |
| 9511317 | Air filter system and air filter element for an air filter system | Michael Kaufmann | 2016-12-06 |
| 9486729 | Air filter element, filter housing and filter arrangement | Michael Kaufmann | 2016-11-08 |
| 9457307 | Filter system with filter element | Michael Kaufmann, Imre Marton | 2016-10-04 |
| 9457308 | Filter element and filter system with a filter element | Michael Kaufmann | 2016-10-04 |
| 9358489 | Air filter system, air filter element and method for exchanging an air filter element | Michael Kaufmann | 2016-06-07 |
| 9314721 | Filter system with seal | Michael Kaufmann | 2016-04-19 |
| 9254457 | Air filter system, air filter element and method for exchanging an air filter element | Michael Kaufmann | 2016-02-09 |
| 9233331 | Air filter element | Michael Kaufmann | 2016-01-12 |
| 9233333 | Filter element | Michael Kaufmann | 2016-01-12 |
| 9212636 | Filter | Michael Kaufmann | 2015-12-15 |
| 9205361 | Air filter element, air filter housing and air filter system | Joerg Menssen, Stefan Becker, Kai Hilarius | 2015-12-08 |
| 9205360 | Filter element and housing for a filter element | Michael Kaufmann | 2015-12-08 |
| 9205358 | Filter element | Michael Kaufmann, Friedrich Kupfer, Joachim-Paul Krieger, Anita Moosmueller | 2015-12-08 |
| 9108137 | Filter arrangement and method for producing a filter receptacle | Michael Kaufmann | 2015-08-18 |
| 8920530 | Filter element and filter system | Michael Kaufmann | 2014-12-30 |
| 8864865 | Air filter element, filter housing and filter arrangement | Michael Kaufmann | 2014-10-21 |
| 8784522 | Air filter system and filter element | Joerg Menssen, Stefan Becker, Kai Hilarius, Steffan Ackermann | 2014-07-22 |
| 8591621 | Filter system | Eric Gillenberg, Oliver Steins | 2013-11-26 |
| 8523973 | Filter element for fluid filtration, in particular for intake air of internal combustion engines | Steffen Ackermann, Michael Kaufmann | 2013-09-03 |