Inventor · Letchworth, GB

William H. Frearson

8Patents
5h-index
4Co-inventors
52Inventor score

Filing activity: May 5, 1986 → May 31, 1996

Most-cited inventions

PatentTitleAreaCited byStatus
US4804023A Hydraulic fluid replenishment device Emerging Cross-Sectional Technologies 36 Expired
US4648258A Breakstem fastener installation tool Emerging Cross-Sectional Technologies 19 Expired
US4704888A Breakstem fastener installation tool Emerging Cross-Sectional Technologies 18 Expired
US4815310A Fastener installation apparatus Emerging Cross-Sectional Technologies 11 Expired
US5697137A Pneumatically powered fastener installation tool Emerging Cross-Sectional Technologies 10 Expired
US5697136A Fastener installation tool Emerging Cross-Sectional Technologies 5 Expired
US5694671A Fastener installation tool including an hydraulically actuated head piston Emerging Cross-Sectional Technologies 5 Expired
US5806160A Fastener installation tool including collection means Emerging Cross-Sectional Technologies 4 Expired

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