Inventor · Pittsburgh, PA, US

Donald D. Armstrong

3Patents
3h-index
4Co-inventors
36Inventor score

Filing activity: Sep 11, 1975 → Sep 1, 1977

Most-cited inventions

PatentTitleAreaCited byStatus
US4166205A Stored energy circuit breaker Electricity 22 Expired
US4034169A Electric switchgear device with interlocking handle means Electricity 22 Expired
US4114005A Circuit breaker spring assembly Electricity 19 Expired

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