Assignee
OVAL CORP
JP·36 granted patents·2 pending applications·560 citations·filing 1993–2022
Top patents by PatentIndex Score
38 records- 0193US5398554ACoriolis flowmeter with natural frequency adjusting means engaged with the counterbalancing conduitOVAL CORP·Filed 1993·Granted Mar 21, 1995·92 cites·8 claims
- 0291US5796012AError correcting Coriolis flowmeterOVAL CORP·Filed 1997·Granted Aug 18, 1998·105 cites·6 claims
- 0390US5691485ACoaxial double tube type Coriolis flowmeterOVAL CORP·Filed 1995·Granted Nov 25, 1997·89 cites·22 claims
- 0480US6802224B2Arch-shaped tube type coriolis meter and method for determining shape of the coriolis meterOVAL CORP·Filed 2002·Granted Oct 12, 2004·29 cites·5 claims
- 0579US7895904B2Multi-vortex flowmeter employing volume flow rate as switching pointOVAL CORP·Filed 2007·Granted Mar 1, 2011·11 cites·4 claims
- 0679US5602346AMass flowmeter converterOVAL CORP·Filed 1995·Granted Feb 11, 1997·48 cites·9 claims
- 0767US7437949B2Tertiary mode vibration type Coriolis flowmeterOVAL CORP·Filed 2004·Granted Oct 21, 2008·14 cites·4 claims
- 0866US9506793B2Coriolis flowmeter having a cross-sectional area of channels of the manifolds enabling a reduction in pressure lossOVAL CORP·Filed 2013·Granted Nov 29, 2016·4 cites·16 claims
- 0964US6807868B1Coriolis mass flow meterOVAL CORP·Filed 2000·Granted Oct 26, 2004·13 cites·16 claims
- 1062US5736647AVortex flow meter detector and vortex flow meterOVAL CORP·Filed 1996·Granted Apr 7, 1998·29 cites·6 claims
- 1160US6895826B1Coriolis mass flowmeterOVAL CORP·Filed 1999·Granted May 24, 2005·28 cites·8 claims
- 1259US10320377B2Instrumentation device having pulse output functionOVAL CORP·Filed 2016·Granted Jun 11, 2019·1 cites·1 claims
- 1357US7905142B2Servo type volumetric flowmeter employing a pump unit systemOVAL CORP·Filed 2008·Granted Mar 15, 2011·4 cites·17 claims
- 1457US7905141B2Path structure related to flow of fluid to be measured and pressure difference detection in servo type volumetric flowmeterOVAL CORP·Filed 2008·Granted Mar 15, 2011·4 cites·2 claims
- 1555US7946185B2Converter pulse width shaping circuit and excessive vortex flow rate meterOVAL CORP·Filed 2007·Granted May 24, 2011·4 cites·2 claims
- 1654US7694585B2Straight tube type Coriolis flowmeter for tertiary mode vibration with elastic connection member and pedestalOVAL CORP·Filed 2006·Granted Apr 13, 2010·2 cites·13 claims
- 1753US7861602B2Explosion-proof high temperature compatible, multi-vortex flow meterOVAL CORP·Filed 2007·Granted Jan 4, 2011·2 cites·8 claims
- 1853US7437950B2Coriolis flow rate meter with flow tube of double loop structureOVAL CORP·Filed 2005·Granted Oct 21, 2008·2 cites·2 claims
- 1952US7827869B2Multiphase flowmeter for measuring each phase flow rate of a three-phase flow consisting of gas and two kinds of liquidOVAL CORP·Filed 2007·Granted Nov 9, 2010·4 cites·4 claims
- 2052US7614297B2Multi-vortex flowmeterOVAL CORP·Filed 2004·Granted Nov 10, 2009·6 cites·20 claims
- 2150US7726202B2Tertiary mode vibration type coriolis flowmeterOVAL CORP·Filed 2005·Granted Jun 1, 2010·1 cites·5 claims
- 2250US2011193003A1Torque limiter and valve actuatorOVAL CORP·Filed 2009·Application pending·0 cites
- 2346USD613195SConverter for a flowmeterOVAL CORP·Filed 2009·Granted Apr 6, 2010·7 cites·1 claims
- 2446USD613196SConverter for a flowmeterOVAL CORP·Filed 2009·Granted Apr 6, 2010·7 cites·1 claims
- 2545USD601050SConverter for flowmeterOVAL CORP·Filed 2009·Granted Sep 29, 2009·6 cites·1 claims
- 2645US6336369B1Straight double-tube type coriolis flow meterOVAL CORP·Filed 1998·Granted Jan 8, 2002·15 cites·6 claims
- 2744US2025102341A1Signal processing deviceOVAL CORP·Filed 2022·Application pending·0 cites
- 2842US8051708B2Temperature measuring circuit in a flowmeterOVAL CORP·Filed 2008·Granted Nov 8, 2011·0 cites·2 claims
- 2942US7409873B2Coriolis flowmeterOVAL CORP·Filed 2004·Granted Aug 12, 2008·2 cites·7 claims
- 3042US6904810B2Purge type vortex flowmeterOVAL CORP·Filed 2002·Granted Jun 14, 2005·6 cites·2 claims
- 3141US7698956B2Coriolis flow meter with vibrating direction restriction meansOVAL CORP·Filed 2007·Granted Apr 20, 2010·0 cites·10 claims
- 3241US7506551B2Coriolis flowmeter having a drive device driven in reverse phase to pair of second drive devicesOVAL CORP·Filed 2004·Granted Mar 24, 2009·2 cites·13 claims
- 3340US9506801B2Piston proverOVAL CORP·Filed 2014·Granted Nov 29, 2016·0 cites·15 claims
- 3440USD628106SConverter for a flowmeterOVAL CORP·Filed 2009·Granted Nov 30, 2010·5 cites·1 claims
- 3540US6588284B1Coriolis mass flowmeter and method of making sameOVAL CORP·Filed 1999·Granted Jul 8, 2003·11 cites·10 claims
- 3639US7870785B2Positive displacement flowmeterOVAL CORP·Filed 2008·Granted Jan 18, 2011·0 cites·6 claims
- 3737US7739920B2Coriolis flowmeter having a fixing member with non-parallel inlet and outlet portionsOVAL CORP·Filed 2004·Granted Jun 22, 2010·0 cites·5 claims
- 3837US5363705AVortex generator having a protrusion formed at an upstream surfaceOVAL CORP·Filed 1993·Granted Nov 15, 1994·7 cites·8 claims
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