Inventor
NELSON RICHARD L
US43 patents
⚠️ This page may combine multiple inventors who share the name “NELSON RICHARD L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ROSEMOUNT INC
21 patentsUS5973942AOct 26, 1999
Start up circuit for DC powered field instrument
ROSEMOUNT INC93 citations98
US6898980B2May 31, 2005
Scalable process transmitter
ROSEMOUNT INC51 citations96
US6568279B2May 27, 2003
Scalable process transmitter
ROSEMOUNT INC48 citations96
US6487912B1Dec 3, 2002
Preinstallation of a pressure sensor module
ROSEMOUNT INC64 citations95
US6484107B1Nov 19, 2002
Selectable on-off logic modes for a sensor module
ROSEMOUNT INC56 citations95
US6457367B1Oct 1, 2002
Scalable process transmitter
ROSEMOUNT INC52 citations95
US5187474AFeb 16, 1993
Digital converter apparatus for improving the output of a two-wire transmitter
ROSEMOUNT INC60 citations95
US6593857B1Jul 15, 2003
Modular process transmitter having a scalable EMI/RFI filtering architecture
ROSEMOUNT INC41 citations94
US6006338ADec 21, 1999
Process transmitter communication circuit
ROSEMOUNT INC64 citations94
US5672975ASep 30, 1997
Two-wire level transmitter
ROSEMOUNT INC83 citations94
US7560907B2Jul 14, 2009
Charging system for field devices
ROSEMOUNT INC28 citations93
US5227782AJul 13, 1993
Hydrostatic interface unit
ROSEMOUNT INC40 citations93
US6504489B1Jan 7, 2003
Process control transmitter having an externally accessible DC circuit common
ROSEMOUNT INC47 citations92
US5323289AJun 21, 1994
Lightning protection for field mounted instruments
ROSEMOUNT INC36 citations92
US7680460B2Mar 16, 2010
Wireless process field device diagnostics
ROSEMOUNT INC26 citations91
US7109883B2Sep 19, 2006
Low power physical layer for a bus in an industrial transmitter
ROSEMOUNT INC37 citations91
US6765968B1Jul 20, 2004
Process transmitter with local databus
ROSEMOUNT INC28 citations91
US8031453B2Oct 4, 2011
Industrial process field device with improved battery assembly
ROSEMOUNT INC11 citations84
US7490516B2Feb 17, 2009
Manual powered process transmitter
ROSEMOUNT INC17 citations83
US7630861B2Dec 8, 2009
Dedicated process diagnostic device
ROSEMOUNT INC18 citations81
US7454553B2Nov 18, 2008
Power transfer field device
ROSEMOUNT INC8 citations74
EXXON RESEARCH ENGINEERING CO
6 patentsUS3956587AMay 11, 1976
Facsimile apparatus
EXXON RESEARCH ENGINEERING CO20 citations82
US4054884AOct 18, 1977
Facsimile copy medium
EXXON RESEARCH ENGINEERING CO10 citations74
US3975590AAug 17, 1976
Facsimile copy medium magazine
EXXON RESEARCH ENGINEERING CO15 citations74
US4317139AFeb 23, 1982
Facsimile apparatus and method of operation
EXXON RESEARCH ENGINEERING CO5 citations63
US4015077AMar 29, 1977
Facsimile transmitter having improved response
EXXON RESEARCH ENGINEERING CO2 citations63
US4112468ASep 5, 1978
Facsimile receiver
EXXON RESEARCH ENGINEERING CO0 citations42
NELSON RICHARD L
5 patentsUS5275249AJan 4, 1994
Raisable hood plate mechanism
NELSON RICHARD L74 citations96
US8217782B2Jul 10, 2012
Industrial field device with reduced power consumption
NELSON RICHARD L12 citations83
US8584275B2Nov 19, 2013
Patient lifter
NELSON RICHARD L7 citations82
US4297376AOct 27, 1981
Corn-based snack product of nut-like consistency
NELSON RICHARD L13 citations71
US8561736B2Oct 22, 2013
Adjustable mid-wheel power wheelchair drive system
NELSON RICHARD L4 citations61