Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7159692 | Silencer | Svend Frederiksen, Soren Aerendal Mikkelsen | 2007-01-09 |
| 6520286 | Silencer and a method of operating a vehicle | Svend Frederiksen, Eyvind Frederiksen, Spencer C. Sorenson | 2003-02-18 |
| 6312650 | Silencer | Svend Frederiksen, Carl Peter Sehested | 2001-11-06 |
| 6220021 | Silencer with incorporated catalyst | Svend Frederiksen | 2001-04-24 |
| 5758497 | Silencer | Svend Frederiksen | 1998-06-02 |