Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4441868 | Fuel injection pump for internal combustion engines | Ernst Ritter | 1984-04-10 |
| 4318185 | Programmable switching device | — | 1982-03-02 |
HF
Helmut Fiedler
Overall (All Time): #2,357,510 of 4,157,543Top 60%
2
Patents All Time