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MAGNETROL INT
US44 patents
Top patents by PatentIndex Score
US5207101AMay 4, 1993
Two-wire ultrasonic transmitter
MAGNETROL INT64 citations95
US5131271AJul 21, 1992
Ultrasonic level detector
MAGNETROL INT131 citations95
US5452267ASep 19, 1995
Midrange ultrasonic transducer
MAGNETROL INT94 citations92
US6062095AMay 16, 2000
Dual compartment instrument housing
MAGNETROL INT106 citations91
US6980174B2Dec 27, 2005
Process control instrument intrinsic safety barrier
MAGNETROL INT19 citations90
US5703289ADec 30, 1997
Microwave transmitter housing
MAGNETROL INT47 citations90
US5121632AJun 16, 1992
Point level switch
MAGNETROL INT25 citations89
US5640880AJun 24, 1997
Magnetostrictive sensor
MAGNETROL INT26 citations88
US5335545AAug 9, 1994
Ultrasonic detector with frequency matching
MAGNETROL INT40 citations88
US5277065AJan 11, 1994
Detector with ringdown frequency matching
MAGNETROL INT35 citations88
US5157639AOct 20, 1992
Ultrasonic detector
MAGNETROL INT53 citations88
US6906662B2Jun 14, 2005
Time domain reflectometry measurement instrument
MAGNETROL INT18 citations86
US5907112AMay 25, 1999
Probe secondary seal
MAGNETROL INT35 citations86
US4347740ASep 7, 1982
Capacitive level sensing device
MAGNETROL INT50 citations86
US6588272B2Jul 8, 2003
Redundant level measuring system
MAGNETROL INT49 citations85
US7889120B2Feb 15, 2011
Pulsed radar level detection system using pulse dithering to eliminate inaccuracies caused by tank rattle
MAGNETROL INT11 citations83
US6515487B1Feb 4, 2003
Low voltage low current bubble detection circuit
MAGNETROL INT32 citations83
US8963769B2Feb 24, 2015
Guided wave radar interface measurement medium identification
MAGNETROL INT9 citations82
US4515015AMay 7, 1985
Capacitance level sensor for use with viscous, electrically conductive materials
MAGNETROL INT31 citations81
US5611239AMar 18, 1997
Microwave point instrument with self-test circuit
MAGNETROL INT26 citations80
US4917135AApr 17, 1990
Liquid level regulator device
MAGNETROL INT19 citations80
US7106248B2Sep 12, 2006
Through air radar level transmitter
MAGNETROL INT12 citations79
US7102584B2Sep 5, 2006
Through air radar level transmitter
MAGNETROL INT12 citations79
US7271646B2Sep 18, 2007
Loop powered process control instrument power supply
MAGNETROL INT7 citations73
US9279705B2Mar 8, 2016
High temperature high pressure seal
MAGNETROL INT3 citations72
US9217659B2Dec 22, 2015
Guided wave radar probe with leak detection
MAGNETROL INT4 citations72
US9069056B2Jun 30, 2015
Guided wave radar probe reference target
MAGNETROL INT5 citations72
US6801157B2Oct 5, 2004
Guided wave radar level transmitter
MAGNETROL INT10 citations72
US5089676AFeb 18, 1992
Liquid level float switch
MAGNETROL INT7 citations72
US5495130AFeb 27, 1996
Point level switch
MAGNETROL INT14 citations69
US4537061AAug 27, 1985
Electronic level detector
MAGNETROL INT8 citations68
US4742195AMay 3, 1988
High temperature hermetic switch
MAGNETROL INT8 citations67
US9360361B2Jun 7, 2016
System and method for emulsion measurement and profiling
MAGNETROL INT2 citations63
US5434555AJul 18, 1995
Thermal dispersion switch with self test circuit
MAGNETROL INT6 citations61
US7259952B2Aug 21, 2007
Process control instrument intrinsic safety barrier
MAGNETROL INT4 citations60
US5701084ADec 23, 1997
Insulated capacitance probe
MAGNETROL INT17 citations60
US5012589AMay 7, 1991
Displacement servo gauge
MAGNETROL INT14 citations59
US7466124B2Dec 16, 2008
Magnetostrictive transmitter with improved piezoelectric sensor
MAGNETROL INT6 citations58
US4375020AFeb 22, 1983
Oscillating level indicator
MAGNETROL INT8 citations58
US9207306B2Dec 8, 2015
Level measurement instrument fiducial detection method
MAGNETROL INT2 citations57
US9081081B2Jul 14, 2015
Diode switched front end for guided wave radar level transmitter
MAGNETROL INT0 citations52
US9151838B2Oct 6, 2015
Ceramic probe rod support assembly
MAGNETROL INT1 citations51
US9121942B2Sep 1, 2015
Guided wave radar delay lock loop circuit
MAGNETROL INT0 citations45
US7874210B2Jan 25, 2011
Ultrasonic sensor assembly and method
MAGNETROL INT0 citations34