Inventor
NELSON ROY T
US3 patents
Patents
3 patentsUS8490878B2Jul 23, 2013
Portable handheld device for wireless order entry and real time payment authorization and related methods
SECUREDPAY SOLUTIONS INC6 citations80
US10592881B2Mar 17, 2020
Portable handheld device for wireless order entry and real time payment authorization and related methods
SECUREDPAY SOLUTIONS INC0 citations48
US10579978B2Mar 3, 2020
Portable handheld device for wireless order entry and real time payment authorization and related methods
SECUREDPAY SOLUTIONS INC0 citations48