Bernhard Schemmel
11Patents
3h-index
15Co-inventors
49Inventor score
Filing activity: Dec 22, 1999 → Apr 19, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6198231A | Circuit configuration for operating at least one discharge lamp | Emerging Cross-Sectional Technologies | 16 | Expired |
| US8134297B2 | Ballast for a discharge lamp with adaptive preheating | Electricity | 9 | Active |
| US6555970B2 | Ballast for gas discharge lamps with shutdown of the filament heating | Electricity | 3 | Expired |
| US6657403B2 | Circuit arrangement for operating a fluorescent lamp | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7309963B2 | Smoothing circuit for improving EMC | Electricity | 1 | Active |
| US6753659B2 | Operating device for discharge lamps having a preheating device | Emerging Cross-Sectional Technologies | 1 | Expired |
| US8558459B2 | Electronic ballast and method for operating an electrical lamp | Electricity | 1 | Active |
| US7863830B2 | Electronic ballast and method for operating an electric lamp | Electricity | 1 | Active |
| US7327094B2 | Circuit arrangement and method for operating at least one electric lamp | Emerging Cross-Sectional Technologies | 0 | Active |
| US7786683B2 | Circuit arrangement and method for operating at least one electric lamp and at least one LED | Electricity | 0 | Active |
| US8319446B2 | Circuit for controlling a fluorescent lamp, method for operating the circuit, and system comprising the circuit | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.