Issued Patents 2018
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10159923 | Hollow filter element, grip device of a hollow filter element, and filter device with at least one hollow filter element | Michael Kaufmann | 2018-12-25 |
| 10138852 | Air filter element | Michael Kaufmann | 2018-11-27 |
| D834166 | Filter housing | Michael Kaufmann, Peter Theiss | 2018-11-20 |
| D817468 | Filter housing | Michael Kaufmann, Peter Theiss | 2018-05-08 |