Issued Patents 2025
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12415153 | Filter element and filter system | Michael Kaufmann, Klaus-Dieter Ruhland | 2025-09-16 |
| 12345224 | Muffler and filter system | Michael Kaufmann, Klaus-Dieter Ruhland | 2025-07-01 |