Karl-Friedrich Leowald
11Patents
6h-index
10Co-inventors
59Inventor score
Filing activity: Nov 4, 1974 → May 18, 1993
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4084206A | Protection circuit for serially connected thyristors | Electricity | 15 | Expired |
| US5384528A | Method and apparatus for recognizing defects in a triggering system of a controlled series compensator | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5489838A | Method and apparatus for generating a synchronizing signal for a controlled series compensator | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5291120A | Method and apparatus for symmetrically modulating a controlled series compensation system | Emerging Cross-Sectional Technologies | 8 | Expired |
| US3938026A | Circuit for the simultaneous ignition of a plurality of thyristors | Electricity | 7 | Expired |
| US5053691A | Methods and device for stabilizing an electric supply system through the adaptation of a controller of a static compensating device | Electricity | 6 | Expired |
| US3987314A | Circuit arrangement for firing a controlled semiconductor valve, particularly a thyristor | Electricity | 3 | Expired |
| US4063145A | Circuit arrangement for firing controlled, parallel-connected electric valves | Electricity | 1 | Expired |
| US3946389A | Circuit arrangement for the wireless transmission of control signals to the control paths of controlled semiconductor valves | Electricity | 1 | Expired |
| US3961204A | Firing circuit for an electric valve | Electricity | 1 | Expired |
| US3944815A | Firing apparatus for a plurality of electric valves | Electricity | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.