Assignee
ROSEMOUNT INC
US924 patents
Top patents by PatentIndex Score
US7255012B2Aug 14, 2007
Process fluid flow device with variable orifice
ROSEMOUNT INC1,079 citations99
US6654697B1Nov 25, 2003
Flow measurement with diagnostics
ROSEMOUNT INC213 citations99
US6539267B1Mar 25, 2003
Device in a process system for determining statistical parameter
ROSEMOUNT INC187 citations99
US6519546B1Feb 11, 2003
Auto correcting temperature transmitter with resistance based sensor
ROSEMOUNT INC135 citations99
US6397114B1May 28, 2002
Device in a process system for detecting events
ROSEMOUNT INC270 citations99
US6370448B1Apr 9, 2002
Communication technique for field devices in industrial processes
ROSEMOUNT INC312 citations99
US6295875B1Oct 2, 2001
Process pressure measurement devices with improved error compensation
ROSEMOUNT INC203 citations99
US6047220AApr 4, 2000
Device in a process system for validating a control signal from a field device
ROSEMOUNT INC184 citations99
US6017143AJan 25, 2000
Device in a process system for detecting events
ROSEMOUNT INC334 citations99
US5956663ASep 21, 1999
Signal processing technique which separates signal components in a sensor for sensor diagnostics
ROSEMOUNT INC152 citations99
US5876122AMar 2, 1999
Temperature sensor
ROSEMOUNT INC136 citations99
US5870695AFeb 9, 1999
Differential pressure measurement arrangement utilizing remote sensor units
ROSEMOUNT INC143 citations99
US5764891AJun 9, 1998
Process I/O to fieldbus interface circuit
ROSEMOUNT INC265 citations99
US5705978AJan 6, 1998
Process control transmitter
ROSEMOUNT INC216 citations99
US5665899ASep 9, 1997
Pressure sensor diagnostics in a process transmitter
ROSEMOUNT INC173 citations99
US5637802AJun 10, 1997
Capacitive pressure sensor for a pressure transmitted where electric field emanates substantially from back sides of plates
ROSEMOUNT INC175 citations99
US5573032ANov 12, 1996
Valve positioner with pressure feedback, dynamic correction and diagnostics
ROSEMOUNT INC290 citations99
US5549137AAug 27, 1996
Valve positioner with pressure feedback, dynamic correction and diagnostics
ROSEMOUNT INC187 citations99
US5431182AJul 11, 1995
Smart valve positioner
ROSEMOUNT INC153 citations99
US4988990AJan 29, 1991
Dual master implied token communication system
ROSEMOUNT INC183 citations99
US4790192ADec 13, 1988
Silicon side by side coplanar pressure sensors
ROSEMOUNT INC166 citations99
US4598381AJul 1, 1986
Pressure compensated differential pressure sensor and method
ROSEMOUNT INC149 citations99
US7957708B2Jun 7, 2011
Process device with improved power generation
ROSEMOUNT INC476 citations98
US7940189B2May 10, 2011
Leak detector for process valve
ROSEMOUNT INC94 citations98
US7290450B2Nov 6, 2007
Process diagnostics
ROSEMOUNT INC92 citations98
US7262693B2Aug 28, 2007
Process field device with radio frequency communication
ROSEMOUNT INC94 citations98
US7254518B2Aug 7, 2007
Pressure transmitter with diagnostics
ROSEMOUNT INC66 citations98
US7003187B2Feb 21, 2006
Optical switch with moveable holographic optical element
ROSEMOUNT INC127 citations98
US6907383B2Jun 14, 2005
Flow diagnostic system
ROSEMOUNT INC111 citations98
US6901101B2May 31, 2005
Optical sensor for measuring physical and material properties
ROSEMOUNT INC94 citations98
US6701274B1Mar 2, 2004
Prediction of error magnitude in a pressure transmitter
ROSEMOUNT INC114 citations98
US6601005B1Jul 29, 2003
Process device diagnostics using process variable sensor signal
ROSEMOUNT INC252 citations98
US6574515B1Jun 3, 2003
Two-wire field-mounted process device
ROSEMOUNT INC143 citations98
US6532392B1Mar 11, 2003
Transmitter with software for determining when to initiate diagnostics
ROSEMOUNT INC174 citations98
US6508131B2Jan 21, 2003
Process sensor module having a single ungrounded input/output conductor
ROSEMOUNT INC77 citations98
US6473710B1Oct 29, 2002
Low power two-wire self validating temperature transmitter
ROSEMOUNT INC91 citations98
US6452521B1Sep 17, 2002
Mapping a delta-sigma converter range to a sensor range
ROSEMOUNT INC102 citations98
US6356191B1Mar 12, 2002
Error compensation for a process fluid temperature transmitter
ROSEMOUNT INC113 citations98
US6119047ASep 12, 2000
Transmitter with software for determining when to initiate diagnostics
ROSEMOUNT INC238 citations98
US6089097AJul 18, 2000
Elongated pressure sensor for a pressure transmitter
ROSEMOUNT INC87 citations98
US6079276AJun 27, 2000
Sintered pressure sensor for a pressure transmitter
ROSEMOUNT INC87 citations98
US5973942AOct 26, 1999
Start up circuit for DC powered field instrument
ROSEMOUNT INC93 citations98
US5899962AMay 4, 1999
Differential pressure measurement arrangement utilizing dual transmitters
ROSEMOUNT INC150 citations98
US5825664AOct 20, 1998
Field-mounted control unit
ROSEMOUNT INC149 citations98
US5731522AMar 24, 1998
Transmitter with isolation assembly for pressure sensor
ROSEMOUNT INC101 citations98
US5700090ADec 23, 1997
Temperature sensor transmitter with sensor sheath lead
ROSEMOUNT INC104 citations98
US5606513AFeb 25, 1997
Transmitter having input for receiving a process variable from a remote sensor
ROSEMOUNT INC200 citations98
US5495769AMar 5, 1996
Multivariable transmitter
ROSEMOUNT INC196 citations98
US5245616ASep 14, 1993
Technique for acknowledging packets
ROSEMOUNT INC199 citations98
US4869282ASep 26, 1989
Micromachined valve with polyimide film diaphragm
ROSEMOUNT INC237 citations98
Showing the top 50 of 924 patents by PatentIndex Score.