Inventor
PFEIFFER HELMUT
DE24 patents
⚠️ This page may combine multiple inventors who share the name “PFEIFFER HELMUT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ENDRESS HAUSER GMBH CO
8 patentsUS6205855B1Mar 27, 2001
Device for monitoring a predetermined level in a container
ENDRESS HAUSER GMBH CO320 citations98
US6236322B1May 22, 2001
Apparatus for establishing and/or monitoring a predetermined filling level in a container
ENDRESS HAUSER GMBH CO59 citations96
US5264831ANov 23, 1993
Device for determining and/or monitoring a predetermined contents level in a container
ENDRESS HAUSER GMBH CO81 citations96
US4594584AJun 10, 1986
Device for determining and/or monitoring a predetermined filling level in a container
ENDRESS HAUSER GMBH CO125 citations95
US5966983AOct 19, 1999
Assembly for sensing and/or monitoring a predetermined level in a vessel
ENDRESS HAUSER GMBH CO34 citations92
US6081064AJun 27, 2000
Acoustic transducer system
ENDRESS HAUSER GMBH CO14 citations71
US4718284AJan 12, 1988
Bulk flow meter
ENDRESS HAUSER GMBH CO5 citations62
US4718285AJan 12, 1988
Bulk flow meter
ENDRESS HAUSER GMBH CO4 citations62
ENDRESS & HAUSER GMBH & CO KG
7 patentsUS7681445B2Mar 23, 2010
Apparatus for determining and/or monitoring at least one process variable
ENDRESS & HAUSER GMBH & CO KG8 citations84
US7530268B2May 12, 2009
Device for determining and/or monitoring at least one physical or chemical process variable of a medium in a container
ENDRESS & HAUSER GMBH & CO KG9 citations84
US7444245B2Oct 28, 2008
Field device for determining and/or monitoring a process variable
ENDRESS & HAUSER GMBH & CO KG7 citations74
US7102528B2Sep 5, 2006
Device for determining and/or monitoring a predetermined filling level in a container
ENDRESS & HAUSER GMBH & CO KG6 citations73
US7886602B2Feb 15, 2011
Apparatus for determining and/or monitoring a process variable
ENDRESS & HAUSER GMBH & CO KG4 citations63
US7403127B2Jul 22, 2008
Device for establishing and/or monitoring a predetermined fill level in a container
ENDRESS & HAUSER GMBH & CO KG5 citations62
US7190105B2Mar 13, 2007
Sound or ultrasound sensor
ENDRESS & HAUSER GMBH & CO KG4 citations60
ENDRESS HAUSER GMBH CO KG
3 patentsUS10107670B2Oct 23, 2018
Apparatus for determining and/or monitoring at least one process variable
ENDRESS HAUSER GMBH CO KG1 citations51
US9473070B2Oct 18, 2016
Apparatus for determining and/or monitoring at least one process variable
ENDRESS HAUSER GMBH CO KG1 citations50
US9829367B2Nov 28, 2017
Fill-level measuring device
ENDRESS HAUSER GMBH CO KG0 citations39