Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5609143 | Exhaust gas recirculation valve for an internal combustion engine | Johannes Meiwes | 1997-03-11 |
GS
Gerhard Schellenberg
Overall (1997): #148,700 of 185,788Top 85%
1
Patents 1997