Inventor · Cadillac, MI, US

Douglas Ruffley

2Patents
1h-index
1Co-inventors
34Inventor score

Filing activity: Mar 27, 1975 → Apr 4, 1988

Most-cited inventions

PatentTitleAreaCited byStatus
US4000684A Safety lock-out valve Emerging Cross-Sectional Technologies 15 Expired
USD314903S Handle for a clamp General 0 Expired

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