Inventor · Zaberfeld, DE

Ewald Keller

2Patents
2h-index
2Co-inventors
27Inventor score

Filing activity: Jul 8, 1987 → Jul 11, 1988

Most-cited inventions

PatentTitleAreaCited byStatus
US4910388A Electric heating unit Electricity 12 Expired
US4864106A Electrical component Emerging Cross-Sectional Technologies 2 Expired

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