Inventor · Coon Rapids, MN, US

William E. Ingold

3Patents
3h-index
3Co-inventors
39Inventor score

Filing activity: Mar 11, 1983 → Apr 14, 1989

Most-cited inventions

PatentTitleAreaCited byStatus
US4581603A Switch matrix key closure validation device and method Electricity 19 Expired
USD311384S Keyboard General 6 Expired
USD311524S Keyboard General 3 Expired

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