Inventor · disambiguated record
Helmut Pfeiffer
Also filed as: PFEIFFER HELMUT
24 granted patents·2 pending applications·718 citations·filing 1984–2013
96Inventor score
Files withENDRESS & HAUSER GMBH & CO KG12ENDRESS HAUSER GMBH CO8URBAN MARTIN2FLOWTEC AG1KUHNY JUTTA1
Top patents by PatentIndex Score
26 records- 0198US6205855B1Device for monitoring a predetermined level in a containerENDRESS HAUSER GMBH CO·Filed 1997·Granted Mar 27, 2001·320 cites·11 claims
- 0297US4594584ADevice for determining and/or monitoring a predetermined filling level in a containerENDRESS HAUSER GMBH CO·Filed 1984·Granted Jun 10, 1986·125 cites·20 claims
- 0392US5264831ADevice for determining and/or monitoring a predetermined contents level in a containerENDRESS HAUSER GMBH CO·Filed 1991·Granted Nov 23, 1993·81 cites·43 claims
- 0491US7325461B2Measurement transducer of vibration-typeFLOWTEC AG·Filed 2006·Granted Feb 5, 2008·24 cites·21 claims
- 0586US6236322B1Apparatus for establishing and/or monitoring a predetermined filling level in a containerENDRESS HAUSER GMBH CO·Filed 1999·Granted May 22, 2001·59 cites·14 claims
- 0675US7886602B2Apparatus for determining and/or monitoring a process variableENDRESS & HAUSER GMBH & CO KG·Filed 2005·Granted Feb 15, 2011·4 cites·6 claims
- 0772US7681445B2Apparatus for determining and/or monitoring at least one process variableENDRESS & HAUSER GMBH & CO KG·Filed 2005·Granted Mar 23, 2010·8 cites·11 claims
- 0872US7530268B2Device for determining and/or monitoring at least one physical or chemical process variable of a medium in a containerENDRESS & HAUSER GMBH & CO KG·Filed 2004·Granted May 12, 2009·9 cites·11 claims
- 0972US5966983AAssembly for sensing and/or monitoring a predetermined level in a vesselENDRESS HAUSER GMBH CO·Filed 1998·Granted Oct 19, 1999·34 cites·21 claims
- 1068US10107670B2Apparatus for determining and/or monitoring at least one process variableENDRESS HAUSER GMBH CO KG·Filed 2012·Granted Oct 23, 2018·1 cites·13 claims
- 1168US8261615B2Apparatus for determining and/or monitoring a process variable of a mediumLOPATIN SERGEJ·Filed 2007·Granted Sep 11, 2012·2 cites·32 claims
- 1267US7403127B2Device for establishing and/or monitoring a predetermined fill level in a containerENDRESS & HAUSER GMBH & CO KG·Filed 2006·Granted Jul 22, 2008·5 cites·15 claims
- 1365US9377343B2Apparatus for determining and/or monitoring a predetermined fill levelURBAN MARTIN·Filed 2011·Granted Jun 28, 2016·2 cites·9 claims
- 1464US8919192B2Multivariable sensor for determining and/or monitoring fill level and density and/or viscosity of a liquid in a containerPFEIFFER HELMUT·Filed 2010·Granted Dec 30, 2014·2 cites·14 claims
- 1558US9473070B2Apparatus for determining and/or monitoring at least one process variableENDRESS HAUSER GMBH CO KG·Filed 2012·Granted Oct 18, 2016·1 cites·11 claims
- 1655US7444245B2Field device for determining and/or monitoring a process variableENDRESS & HAUSER GMBH & CO KG·Filed 2004·Granted Oct 28, 2008·7 cites·13 claims
- 1755US7102528B2Device for determining and/or monitoring a predetermined filling level in a containerENDRESS & HAUSER GMBH & CO KG·Filed 2002·Granted Sep 5, 2006·6 cites·10 claims
- 1852US7190105B2Sound or ultrasound sensorENDRESS & HAUSER GMBH & CO KG·Filed 2003·Granted Mar 13, 2007·4 cites·5 claims
- 1947US2010030486A1Method and Apparatus for Determining at Least One Measured Variable of a MediumENDRESS & HAUSER GMBH & CO KG·Filed 2006·Application pending·0 cites
- 2044US9829367B2Fill-level measuring deviceENDRESS HAUSER GMBH CO KG·Filed 2013·Granted Nov 28, 2017·0 cites·10 claims
- 2144US6081064AAcoustic transducer systemENDRESS HAUSER GMBH CO·Filed 1998·Granted Jun 27, 2000·14 cites·22 claims
- 2240US10234324B2Apparatus for determining and/or monitoring a process variableKUHNY JUTTA·Filed 2007·Granted Mar 19, 2019·1 cites·8 claims
- 2340US8997556B2Apparatus for determining and/or monitoring a process variableURBAN MARTIN·Filed 2009·Granted Apr 7, 2015·0 cites·14 claims
- 2435US4718284ABulk flow meterENDRESS HAUSER GMBH CO·Filed 1986·Granted Jan 12, 1988·5 cites·12 claims
- 2535US2006156835A1Housing with reduced thermal, conduction for a measuring instrumentENDRESS & HAUSER GMBH & CO KG·Filed 2003·Application pending·0 cites
- 2633US4718285ABulk flow meterENDRESS HAUSER GMBH CO·Filed 1986·Granted Jan 12, 1988·4 cites·10 claims
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