Issued Patents 2023
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11725615 | Secondary filter element and filter arrangement | Dennis Stark, Michael Kaufmann | 2023-08-15 |
| 11719202 | Filter and filter cartridge | Michael Kaufmann | 2023-08-08 |
| 11697084 | Filter element, element frame of a filter element, filter bellows of a filter element, filter housing, and filter | Michael Kaufmann | 2023-07-11 |
| 11591993 | Filter element and air cleaner assembly | Timothy S. Finn, Michael Kaufmann | 2023-02-28 |