Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6260531 | Valve seat insert | Deborah Martha Haan, Bradley David Opperman, Manfred Kraemer | 2001-07-17 |
PB
Peter Birtel
Overall (All Time): #3,587,956 of 4,157,543Top 90%
1
Patents All Time