Hermann Waldmann
12Patents
8h-index
20Co-inventors
68Inventor score
Filing activity: Jul 26, 1973 → Jun 10, 1992
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4419621A | Monitoring system for the capacitor batteries of a three-phase filter circuit | Electricity | 50 | Expired |
| US4409542A | Monitoring system for an LC filter circuit in an AC power network | Electricity | 40 | Expired |
| US3968422A | Method and apparatus for the static compensation of reactive power | Electricity | 29 | Expired |
| US4057714A | Durability or service-life monitoring device for a turbogenerator shaft | Physics | 15 | Expired |
| US4507703A | System for error-protected operation of multipanel, power distribution network switches | Electricity | 14 | Expired |
| US4205368A | Method for the transmission of DC current between at least one rectifier station and several inverter stations | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4429338A | Earth contact monitoring device for a polyphase three-phase filter circuit | Electricity | 11 | Expired |
| US4393345A | Circuit for damping hunting by electric machines | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4008428A | Circuit arrangement with a number of frequency converters, particularly Y-connected direct frequency converters | Electricity | 8 | Expired |
| US3934184A | Arrangement for regulating the speed of an asynchronous motor | Electricity | 5 | Expired |
| US5294857A | Synchronous machine having control coils for compensating mechanical oscillations of the rotor | Electricity | 3 | Expired |
| US4326230A | Circuit for monitoring the voltage stress of a capacitor | Electricity | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.