Inventor · Pleasanton, CA, US

Steven R. Hoffman

6Patents
4h-index
2Co-inventors
43Inventor score

Filing activity: May 31, 2000 → Sep 9, 2014

Most-cited inventions

PatentTitleAreaCited byStatus
US7729986B1 Smart card transactions using wireless telecommunications network Physics 64 Expired
US9020853B2 Smart card loading transactions using wireless telecommunications network Physics 55 Active
US8805746B2 Smart card purchasing transactions using wireless telecommunications network Physics 50 Active
US8417631B2 Smart card loading transactions using wireless telecommunications network Physics 40 Active
US9558489B2 Smart card loading transactions using wireless telecommunications network Physics 2 Active
US10339522B2 Smart card purchasing transactions using wireless telecommunications network Physics 0 Active

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