Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8001770 | Exhaust system for an internal combustion engine | Felix Neumann | 2011-08-23 |
| 7891463 | Active muffler | Jan Krüger, Frank Castor, Manfred Muller | 2011-02-22 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8001770 | Exhaust system for an internal combustion engine | Felix Neumann | 2011-08-23 |
| 7891463 | Active muffler | Jan Krüger, Frank Castor, Manfred Muller | 2011-02-22 |