Inventor · Zeitlofs, DE

Erich Karg

5Patents
4h-index
4Co-inventors
50Inventor score

Filing activity: Jul 13, 1995 → Jan 20, 2016

Most-cited inventions

PatentTitleAreaCited byStatus
US5698905A Hybrid propulsion system for a motor vehicle and a method of operating the hybrid propulsion system Emerging Cross-Sectional Technologies 63 Expired
US5848659A Non-railbound vehicle with an electric motor Emerging Cross-Sectional Technologies 32 Expired
US5705859A Non-railbound vehicle with an electric motor and an internal combustion engine powered generator wherein a low voltage source and capacitors are used to operate the generator as a starter to start the engine Emerging Cross-Sectional Technologies 32 Expired
US6239566A Drive system for a permanently excited electric motor having at least one phase winding Emerging Cross-Sectional Technologies 31 Expired
US10122312B2 Control of a rotating field machine Electricity 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.