Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853007 | Soot reservoir for an exhaust gas scrubbing system for an internal combustion engine | Rolf Leonhard | 1989-08-01 |
PS
Peter Schütz
Overall (1989): #69,288 of 140,708Top 50%
1
Patents 1989