Assignee
WHITE S ELECTRONICS
US26 patents
Top patents by PatentIndex Score
US4906973AMar 6, 1990
Walk-through metal detector
WHITE S ELECTRONICS60 citations94
US4249128AFeb 3, 1981
Wide pulse gated metal detector with improved noise rejection
WHITE S ELECTRONICS82 citations94
US4110679AAug 29, 1978
Ferrous/non-ferrous metal detector using sampling
WHITE S ELECTRONICS50 citations93
US5642050AJun 24, 1997
Plural frequency method and system for identifying metal objects in a background environment using a target model
WHITE S ELECTRONICS57 citations92
US6911823B2Jun 28, 2005
Metal detector employing static discrimination
WHITE S ELECTRONICS33 citations90
US6879161B2Apr 12, 2005
Method and apparatus for distinguishing metal objects employing multiple frequency interrogation
WHITE S ELECTRONICS26 citations90
US5523690AJun 4, 1996
Metal detector with bivariate display
WHITE S ELECTRONICS29 citations90
US4293816AOct 6, 1981
Balanced search loop for metal detector
WHITE S ELECTRONICS31 citations90
US5654638AAug 5, 1997
Plural Frequency method and system for identifying metal objects in a background environment
WHITE S ELECTRONICS53 citations89
US4862316AAug 29, 1989
Static charge dissipating housing for metal detector search loop assembly
WHITE S ELECTRONICS27 citations89
US4030026AJun 14, 1977
Sampling metal detector
WHITE S ELECTRONICS82 citations86
US4024468AMay 17, 1977
Induction balance metal detector with inverse discrimination
WHITE S ELECTRONICS104 citations86
US5414411AMay 9, 1995
Pulse induction metal detector
WHITE S ELECTRONICS39 citations84
US7649356B2Jan 19, 2010
Pulse induction metal detector having high energy efficiency and sensitivity
WHITE S ELECTRONICS13 citations83
US4868910ASep 19, 1989
Metal detector with microprocessor control and analysis
WHITE S ELECTRONICS49 citations81
US9285496B1Mar 15, 2016
Truncated half-sine methods for metal detectors
WHITE S ELECTRONICS8 citations76
US7994789B1Aug 9, 2011
Dual field search coil for pulse induction metal detectors
WHITE S ELECTRONICS7 citations75
US6421621B1Jul 16, 2002
Metal detector target identification using flash phase analysis
WHITE S ELECTRONICS10 citations73
US6172504B1Jan 9, 2001
Metal detector target identification using flash phase analysis
WHITE S ELECTRONICS12 citations73
US9989663B1Jun 5, 2018
Auto nulling of induction balance metal detector coils
WHITE S ELECTRONICS4 citations72
US5596277AJan 21, 1997
Method and apparatus for displaying signal information from a metal detector
WHITE S ELECTRONICS10 citations71
US4783630ANov 8, 1988
Metal detector with circuits for automatically screening out the effects of offset and mineralized ground
WHITE S ELECTRONICS17 citations70
US7088103B2Aug 8, 2006
Metal detector having a plurality of phase delay discrimination regions with corresponding selectable exception spaces therein
WHITE S ELECTRONICS10 citations68
US10228481B1Mar 12, 2019
Ground eliminating metal detector
WHITE S ELECTRONICS1 citations62
US7391217B2Jun 24, 2008
Metal detection methods and apparatus wherein a numeric representation of the sense signal and a noise contribution to the sense signal are produced
WHITE S ELECTRONICS8 citations62
US7148692B2Dec 12, 2006
Detector for non-ferrous metals with reduced false positive responses
WHITE S ELECTRONICS6 citations57