Inventor
WILLCOX CHARLES R
US41 patents
⚠️ This page may combine multiple inventors who share the name “WILLCOX CHARLES R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ROSEMOUNT INC
25 patentsUS5665899ASep 9, 1997
Pressure sensor diagnostics in a process transmitter
ROSEMOUNT INC173 citations99
US7262693B2Aug 28, 2007
Process field device with radio frequency communication
ROSEMOUNT INC94 citations98
US7003187B2Feb 21, 2006
Optical switch with moveable holographic optical element
ROSEMOUNT INC127 citations98
US6425290B2Jul 30, 2002
Oil-less differential pressure sensor
ROSEMOUNT INC46 citations95
US6505516B1Jan 14, 2003
Capacitive pressure sensing with moving dielectric
ROSEMOUNT INC36 citations93
US6612174B2Sep 2, 2003
Optical pressure sensor
ROSEMOUNT INC29 citations92
US5515732AMay 14, 1996
Capacitive pressure sensor and reference with stress isolating pedestal
ROSEMOUNT INC68 citations92
US7308830B2Dec 18, 2007
Pressure sensor fault detection
ROSEMOUNT INC20 citations90
US5695590ADec 9, 1997
Anodic bonding method for making pressure sensor
ROSEMOUNT INC38 citations89
US7956738B2Jun 7, 2011
Process field device with radio frequency communication
ROSEMOUNT INC12 citations84
US7177505B2Feb 13, 2007
MEMS-based actuator devices using electrets
ROSEMOUNT INC16 citations84
US7918134B2Apr 5, 2011
Thermal-based diagnostic system for process transmitter
ROSEMOUNT INC19 citations82
US7334484B2Feb 26, 2008
Line pressure measurement using differential pressure sensor
ROSEMOUNT INC9 citations82
US7450812B2Nov 11, 2008
Compensated variable optical attenuator
ROSEMOUNT INC17 citations81
US7779698B2Aug 24, 2010
Pressure sensor
ROSEMOUNT INC7 citations74
US6810176B2Oct 26, 2004
Integrated transparent substrate and diffractive optical element
ROSEMOUNT INC8 citations74
US11209296B2Dec 28, 2021
Non-intrusive process fluid pressure measurement system
ROSEMOUNT INC3 citations73
US10190968B2Jan 29, 2019
Corrosion rate measurement with multivariable sensor
ROSEMOUNT INC2 citations73
US10048152B2Aug 14, 2018
Pressure transmitter with overpressure protection
ROSEMOUNT INC7 citations72
US10060813B2Aug 28, 2018
High over-pressure capable silicon die pressure sensor
ROSEMOUNT INC3 citations69
US10209154B2Feb 19, 2019
In-line process fluid pressure transmitter for high pressure applications
ROSEMOUNT INC2 citations67
US11506556B2Nov 22, 2022
Single-use plastic pressure sensor
ROSEMOUNT INC0 citations62
US7954383B2Jun 7, 2011
Method and apparatus for pressure measurement using fill tube
ROSEMOUNT INC5 citations62
US12467800B2Nov 11, 2025
Heat flow-based process fluid temperature estimation system with thermal time response improvement
ROSEMOUNT INC0 citations52
US9891161B2Feb 13, 2018
Corrosion rate measurement
ROSEMOUNT INC0 citations52
ROSEMOUNT AEROSPACE INC
10 patentsUS6609825B2Aug 26, 2003
Total air temperature probe providing improved anti-icing performance and reduced deicing heater error
ROSEMOUNT AEROSPACE INC76 citations97
US7828477B2Nov 9, 2010
Aspirated enhanced total air temperature probe
ROSEMOUNT AEROSPACE INC22 citations92
US6840672B2Jan 11, 2005
Total air temperature probe providing improved anti-icing performance and reduced deicing heater error
ROSEMOUNT AEROSPACE INC36 citations92
USD497114SOct 12, 2004
Total air temperature probe
ROSEMOUNT AEROSPACE INC19 citations92
US6414282B1Jul 2, 2002
Active heater control circuit and method used for aerospace probes
ROSEMOUNT AEROSPACE INC40 citations92
US7357572B2Apr 15, 2008
Total air temperature probe having improved deicing heater error performance
ROSEMOUNT AEROSPACE INC31 citations91
USD587610SMar 3, 2009
Total air temperature probe
ROSEMOUNT AEROSPACE INC12 citations82
USD566595SApr 15, 2008
Total air temperature probe
ROSEMOUNT AEROSPACE INC5 citations72
USD548634SAug 14, 2007
Total air temperature probe
ROSEMOUNT AEROSPACE INC8 citations72
USD545227SJun 26, 2007
Total air temperature probe
ROSEMOUNT AEROSPACE INC9 citations72