Inventor · Putzbrunn, DE

Hans Derschmidt

3Patents
3h-index
2Co-inventors
33Inventor score

Filing activity: Oct 3, 1977 → Apr 25, 1980

Most-cited inventions

PatentTitleAreaCited byStatus
US4182597A Helicopter rotor head Performing Operations; Transporting 15 Expired
US4344739A Hingeless and bearingless multiblade rotor for rotary wing aircraft Performing Operations; Transporting 14 Expired
US4201515A Rotor without flapping hinges and without lead-lag hinges Performing Operations; Transporting 10 Expired

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