P

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.