Inventor
BARROWMAN JOHN HENRY
US18 patents
⚠️ This page may combine multiple inventors who share the name “BARROWMAN JOHN HENRY”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
VERIFONE INC
16 patentsUS8760292B2Jun 24, 2014
Point of sale terminal having enhanced security
VERIFONE INC8 citations82
US9665746B2May 30, 2017
Secure smartcard reader
VERIFONE INC3 citations81
US9213869B2Dec 15, 2015
Magnetic stripe reading device
VERIFONE INC7 citations81
US10544923B1Jan 28, 2020
Devices and methods for optical-based tamper detection using variable light characteristics
VERIFONE INC4 citations72
US8988233B2Mar 24, 2015
Point of sale terminal having enhanced security
VERIFONE INC2 citations60
US8954750B2Feb 10, 2015
Secure PIN entry device
VERIFONE INC1 citations60
US9032222B2May 12, 2015
Secure point of sale terminal
VERIFONE INC2 citations59
US10753581B2Aug 25, 2020
Devices and methods for optical-based tamper detection using variable light characteristics
VERIFONE INC0 citations51
US9792803B2Oct 17, 2017
Secure PIN entry device
VERIFONE INC0 citations50
US9275528B2Mar 1, 2016
Point of sale terminal having enhanced security
VERIFONE INC0 citations50
US11741206B2Aug 29, 2023
Secure electronic devices and methods
VERIFONE INC0 citations49
US10185847B2Jan 22, 2019
Secure smartcard reader
VERIFONE INC0 citations49
US9996713B2Jun 12, 2018
Secure smartcard reader
VERIFONE INC0 citations49
US9904815B2Feb 27, 2018
Secure smartcard reader
VERIFONE INC0 citations49
US10558965B2Feb 11, 2020
Secure touchscreen device
VERIFONE INC0 citations44
US11397835B2Jul 26, 2022
Data device including OFN functionality
VERIFONE INC0 citations38