Helmut Herrmann
12Patents
5h-index
20Co-inventors
66Inventor score
Filing activity: Oct 7, 1988 → Sep 24, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6192094A | Digital phase-frequency detector | Electricity | 19 | Expired |
| US4945978A | Heat exchanger system | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US5034700A | Integratable amplifier circuit | Electricity | 9 | Expired |
| US5557649A | Circuit configuration for dividing a clock signal | Electricity | 8 | Expired |
| US5652543A | Amplifier array for high-frequency signals and multiplexer configuration including the amplifier array | Electricity | 6 | Expired |
| US7469130B2 | Polar modulator and method for determining an amplitude offset in a polar modulator | Electricity | 4 | Active |
| US5524037A | Circuit configuration for generating even-numbered duty factors | Electricity | 4 | Expired |
| US8872552B2 | High-side semiconductor-switch low-power driving circuit and method | Electricity | 3 | Active |
| US9007100B2 | High-side semiconductor-switch low-power driving circuit and method | Electricity | 2 | Active |
| US5566360A | Transmitter/receiver configuration for higher frequencies | Electricity | 1 | Expired |
| US6734708B1 | Controllable current source circuit and a phase locked loop equipped with such a circuit | Electricity | 0 | Expired |
| US8748347B2 | Method for combating harmful fungi | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.