Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4825651 | Device and process for separating soot or other impurities from the exhaust gases of an internal-combustion engine | Johann Furtauer | 1989-05-02 |
HP
Herbert A. Puschner
Overall (1989): #106,322 of 140,708Top 80%
1
Patents 1989