Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9728176 | Active design of exhaust sounds | Martin Romzek | 2017-08-08 |
| 8434590 | Muffler | — | 2013-05-07 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9728176 | Active design of exhaust sounds | Martin Romzek | 2017-08-08 |
| 8434590 | Muffler | — | 2013-05-07 |