Inventor · Cologne, DE

Peter Frieden

6Patents
4h-index
6Co-inventors
50Inventor score

Filing activity: Dec 16, 1982 → Mar 25, 2013

Most-cited inventions

PatentTitleAreaCited byStatus
US9242698B2 Electric drive for bicycles Performing Operations; Transporting 49 Active
US4632650A Vacuum pump having an evacuated gear chamber Emerging Cross-Sectional Technologies 16 Expired
US4525129A Oil-sealed vacuum pump Mechanical Engineering; Lighting; Heating 10 Expired
US4483667A Vacuum pump and method of operating the same Mechanical Engineering; Lighting; Heating 9 Expired
US5044895A Oil supply device for a rotary machine Mechanical Engineering; Lighting; Heating 3 Expired
US9463835B2 Bicycle dynamo Performing Operations; Transporting 0 Active

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