Inventor · Darmstadt, DE

Ellen Greifenstein

2Patents
1h-index
7Co-inventors
30Inventor score

Filing activity: Jun 27, 2006 → Aug 1, 2008

Most-cited inventions

PatentTitleAreaCited byStatus
US7862943B2 Method and apparatus for starting a fuel cell engine in a vehicle equipped with an ultracapacitor Emerging Cross-Sectional Technologies 12 Active
US7716938B2 External control of a vehicle coolant pump with remote heating option Emerging Cross-Sectional Technologies 0 Active

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