Inventor · disambiguated record
Roy Ronald Pelfrey
Also filed as: PELFREY ROY R · PELFREY ROY RONALD
24 granted patents·4 pending applications·126 citations·filing 2008–2019
95Inventor score
Files withEMERSON PROCESS MAN REGULATOR TECHNOLOGIES INC16LIN CHUN10FISHER CONTROLS INT1NASHERY KHASHAYAR A1
Top patents by PatentIndex Score
28 records- 0191US9534725B1Noise-attenuation apparatus for pressure regulatorsEMERSON PROCESS MAN REGULATOR TECHNOLOGIES INC·Filed 2016·Granted Jan 3, 2017·14 cites·21 claims
- 0289US8353310B2Valves having removable internal actuation mechanismsFISHER CONTROLS INT·Filed 2008·Granted Jan 15, 2013·17 cites·18 claims
- 0387US10168717B2Removable balanced regulatorEMERSON PROCESS MAN REGULATOR TECHNOLOGIES INC·Filed 2016·Granted Jan 1, 2019·7 cites·18 claims
- 0487US8256462B2Fluid flow control members for use with valvesLIN CHUN·Filed 2008·Granted Sep 4, 2012·16 cites·27 claims
- 0586US8146885B2Field removable bonnet assemblies for use with valvesLIN CHUN·Filed 2008·Granted Apr 3, 2012·12 cites·23 claims
- 0684US11261999B2Apparatus and method for retaining a noise attenuation assembly for use with a pressure regulatorEMERSON PROCESS MAN REGULATOR TECHNOLOGIES INC·Filed 2019·Granted Mar 1, 2022·3 cites·17 claims
- 0783US9133941B2Valves having removable internal actuation mechanismsLIN CHUN·Filed 2012·Granted Sep 15, 2015·5 cites·22 claims
- 0883US8517046B2Redundant metal-to-metal seals for use with internal valvesLIN CHUN·Filed 2009·Granted Aug 27, 2013·13 cites·18 claims
- 0982US10088054B2In-line servicable shutoff valve with excess flowEMERSON PROCESS MAN REGULATOR TECHNOLOGIES INC·Filed 2016·Granted Oct 2, 2018·4 cites·14 claims
- 1078US11562726B2Plates and plate assemblies for noise attenuators and other devices and methods making the sameEMERSON PROCESS MAN REGULATOR TECHNOLOGIES INC·Filed 2019·Granted Jan 24, 2023·2 cites·20 claims
- 1177US8281804B2Pressure relief valvesLIN CHUN·Filed 2008·Granted Oct 9, 2012·8 cites·23 claims
- 1276US9611949B2Bi-directional hose break-away assemblyEMERSON PROCESS MAN REGULATOR TECHNOLOGIES INC·Filed 2015·Granted Apr 4, 2017·3 cites·23 claims
- 1375US10393282B2Multidirectional vent limiting devices for use with fluid regulatorsEMERSON PROCESS MAN REGULATOR TECHNOLOGIES INC·Filed 2017·Granted Aug 27, 2019·2 cites·18 claims
- 1475US10066619B2Valve adapter connection assemblyEMERSON PROCESS MAN REGULATOR TECHNOLOGIES INC·Filed 2015·Granted Sep 4, 2018·2 cites·23 claims
- 1575US8919369B2Fluid flow control members for use with valvesLIN CHUN·Filed 2012·Granted Dec 30, 2014·4 cites·19 claims
- 1673US8556233B2Field removable bonnet assemblies for use with valvesLIN CHUN·Filed 2012·Granted Oct 15, 2013·3 cites·17 claims
- 1772US8671988B2Fluid flow control members for use with valvesLIN CHUN·Filed 2009·Granted Mar 18, 2014·6 cites·18 claims
- 1870US10890266B2Multidirectional vent limiting devices for use with fluid regulatorsEMERSON PROCESS MAN REGULATOR TECHNOLOGIES INC·Filed 2019·Granted Jan 12, 2021·1 cites·17 claims
- 1967US9360131B2Actuator adapter plateNASHERY KHASHAYAR A·Filed 2011·Granted Jun 7, 2016·4 cites·15 claims
- 2063US10975971B2Valve plug assembly for pressure regulatorEMERSON PROCESS MAN REGULATOR TECHNOLOGIES INC·Filed 2019·Granted Apr 13, 2021·0 cites·20 claims
- 2161US10907746B2Low flow-restriction shut-off valve with excess flow closure functionalityEMERSON PROCESS MAN REGULATOR TECHNOLOGIES INC·Filed 2019·Granted Feb 2, 2021·0 cites·21 claims
- 2258US10975862B2Valve adapter connection assemblyEMERSON PROCESS MAN REGULATOR TECHNOLOGIES INC·Filed 2018·Granted Apr 13, 2021·0 cites·19 claims
- 2355US10364896B2Valve plug assembly for pressure regulatorEMERSON PROCESS MAN REGULATOR TECHNOLOGIES INC·Filed 2017·Granted Jul 30, 2019·0 cites·20 claims
- 2453US10344880B2Actuator assembly for a low flow-restriction shut-off valve with excess flow closure functionalityEMERSON PROCESS MAN REGULATOR TECHNOLOGIES INC·Filed 2016·Granted Jul 9, 2019·0 cites·19 claims
- 2551US2010084029A1Apparatus to determine a position of a valveLIN CHUN·Filed 2008·Application pending·0 cites
- 2650US2018058606A1Apparatus and method for retaining a noise attenuation assembly for use with a pressure regulatorEMERSON PROCESS MAN REGULATOR TECHNOLOGIES INC·Filed 2016·Application pending·0 cites
- 2746US2016123486A1Relief valveEMERSON PROCESS MAN REGULATOR TECHNOLOGIES INC·Filed 2014·Application pending·0 cites
- 2842US2011203685A1Apparatus to determine a position of a valveLIN CHUN·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →