Inventor · San Jose, CA, US

Hao Ngo

43Patents
8h-index
44Co-inventors
71Inventor score

Filing activity: Sep 21, 2009 → Mar 7, 2024

Most-cited inventions

PatentTitleAreaCited byStatus
US9286604B2 Over the air management of payment application installed in mobile device Electricity 106 Active
US9972005B2 Cloud-based transactions methods and systems Electricity 42 Active
US8977567B2 Recordation of electronic payment transaction information Physics 30 Active
US10664824B2 Cloud-based transactions methods and systems Electricity 17 Active
US9672508B2 Over the air update of payment transaction data stored in secure memory Physics 15 Active
US10402814B2 Cloud-based transactions methods and systems Electricity 15 Active
US9824355B2 Method of performing transactions with contactless payment devices using pre-tap and two-tap operations Physics 13 Active
US8321345B2 Trusted internal interface Physics 12 Active
US8320962B2 Contactless disablement Electricity 6 Active
US10103781B2 Contactless data exchange between mobile devices and readers involving value information not necessary to perform a transaction Electricity 6 Active
US10223694B2 Mobile payment application provisioning and personalization on a mobile device Physics 5 Active
US10037523B2 Over the air update of payment transaction data stored in secure memory Physics 5 Active
US10909522B2 Cloud-based transactions methods and systems Electricity 4 Active
US10706402B2 Over the air update of payment transaction data stored in secure memory Physics 4 Active
US11164176B2 Limited-use keys and cryptograms Electricity 3 Active
US11394721B2 Binding cryptogram with protocol characteristics Electricity 2 Active
US9092769B2 Trusted internal interface Physics 2 Active
US10332094B2 Recordation of electronic payment transaction information Physics 2 Active
US9160416B2 Contactless disablement Electricity 2 Active
US9846873B2 Trusted internal interface Physics 1 Active
US10115100B2 Over the air management of payment application installed in mobile device Electricity 1 Active
US11501274B2 Over the air update of payment transaction data stored in secure memory Physics 1 Active
US10769614B2 Over the air update of payment transaction data stored in secure memory Physics 1 Active
US11030608B2 Recordation of electronic payment transaction information Physics 1 Active
US11303450B2 Techniques for securely performing offline authentication Electricity 1 Active

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