Inventor · Princeton, MN, US

Ralph Johnson

1Patents
1h-index
1Co-inventors
22Inventor score

Filing activity: Jun 11, 1987 → Jun 11, 1987

Most-cited inventions

PatentTitleAreaCited byStatus
US4867607A Linkage apparatus having a mechanism for dampening vibrations Fixed Constructions 11 Expired

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