Hermann Klein
9Patents
5h-index
18Co-inventors
60Inventor score
Filing activity: Jun 27, 1978 → Apr 10, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5386287A | Device for automatically evaluating a plurality of probe ingredients by means of chemical sensors | Physics | 37 | Expired |
| US4940034A | Control circuit and method for controlling the speed of an electric fuel pump for an internal combustion engine equipped with fuel injection | Physics | 17 | Expired |
| US5159912A | Apparatus for electronic engine control with performance check for the final ignition stage | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US4467774A | Apparatus for recirculating the exhaust gas of an internal combustion engine | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US6769825B2 | Thermal printer with liftable printing head | Performing Operations; Transporting | 5 | Expired |
| US4392962A | Process for separating metals from aqueous solutions | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4447400A | Metering device | Performing Operations; Transporting | 3 | Expired |
| US4235358A | Device for the edge or center control of moving webs | Performing Operations; Transporting | 2 | Expired |
| US4402812A | Electrolytic cell | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.