Assignee
BI INC
US22 patents
Top patents by PatentIndex Score
US4857893AAug 15, 1989
Single chip transponder device
BI INC587 citations99
US4724427AFeb 9, 1988
Transponder device
BI INC305 citations99
US5298884AMar 29, 1994
Tamper detection circuit and method for use with wearable transmitter tag
BI INC151 citations97
US4952913AAug 28, 1990
Tag for use with personnel monitoring system
BI INC166 citations97
US9240118B2Jan 19, 2016
Systems and methods for beacon tethering in a monitoring system
BI INC45 citations96
US5369699ANov 29, 1994
Adaptable personnel supervisory system with automatic fee collection
BI INC158 citations96
US5204670AApr 20, 1993
Adaptable electric monitoring and identification system
BI INC812 citations96
US4658357AApr 14, 1987
Time and accounting system
BI INC140 citations96
US4475481AOct 9, 1984
Identification system
BI INC105 citations96
US4952928AAug 28, 1990
Adaptable electronic monitoring and identification system
BI INC922 citations95
US9355548B2May 31, 2016
Systems and methods for contact avoidance
BI INC28 citations94
US7930927B2Apr 26, 2011
Transdermal portable alcohol monitor and methods for using such
BI INC92 citations94
US4918432AApr 17, 1990
House arrest monitoring system
BI INC328 citations94
US4812823AMar 14, 1989
Locked transmitter tag assembly and method of lockably attaching same to object
BI INC92 citations94
US4549264AOct 22, 1985
Time and accounting system
BI INC116 citations94
US5255306AOct 19, 1993
Cellular interface unit for use with an electronic house arrest monitoring system
BI INC141 citations92
US9241659B2Jan 26, 2016
Systems and methods for transdermal secretion detection
BI INC62 citations91
US6844816B1Jan 18, 2005
Authentication techniques in a monitoring system
BI INC72 citations87
US5189395AFeb 23, 1993
Electronic house arrest system having officer safety reporting feature
BI INC49 citations86
US5146207ASep 8, 1992
Secure field monitoring device for use in electronic house arrest monitoring system
BI INC51 citations84
US9355579B2May 31, 2016
Systems and methods for image based tamper detection
BI INC16 citations82
US5661458AAug 26, 1997
Electronic house arrest monitoring system with automatic fee collection feature
BI INC15 citations71