Inventor · Alhambra, CA, US

Robert Spellman

2Patents
2h-index
2Co-inventors
38Inventor score

Filing activity: Nov 17, 1975 → Apr 3, 2002

Most-cited inventions

PatentTitleAreaCited byStatus
US7089503B1 Mortgage loan customization system and process Physics 169 Expired
US3991736A Ratchet driving internal combustion engine Mechanical Engineering; Lighting; Heating 9 Expired

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