Inventor · Erie, PA, US

Stephen G. Ratkowski

2Patents
2h-index
5Co-inventors
33Inventor score

Filing activity: Sep 28, 1982 → Mar 6, 1987

Most-cited inventions

PatentTitleAreaCited byStatus
US4466276A Consistometer Physics 26 Expired
US4778150A Non-rotating stem valve Mechanical Engineering; Lighting; Heating 16 Expired

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