Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4313465 | Method and control device for dosing flow media | Helmut Kehrmann | 1982-02-02 |
| 4305302 | Volumetric measurement of a gas flow | Helmut Kehrmann, Bernd Portmann | 1981-12-15 |
| 4271098 | Carburetor for internal combustion engines | Hans J. Henning | 1981-06-02 |
| 4193299 | Apparatus for metering fluid flow | Hans J. Henning | 1980-03-18 |