Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7474955 | Method and apparatus for air fuel ratio adjustment | Richard M. Backman, Erik Sunnegårdh, Staffan Seth | 2009-01-06 |
TW
Thomas Wittefeldt
Overall (All Time): #3,314,662 of 4,157,543Top 80%
1
Patents All Time