Assignee
HEIDENHAIN GMBH DR JOHANNES
DE·816 granted patents·26 pending applications·10,482 citations·filing 1973–2025
Top patents by PatentIndex Score
842 records- 0198US4628201AScanning signal balancing circuitHEIDENHAIN GMBH DR JOHANNES·Filed 1984·Granted Dec 9, 1986·116 cites·13 claims
- 0296US7573581B2Position-measuring deviceHEIDENHAIN GMBH DR JOHANNES·Filed 2006·Granted Aug 11, 2009·38 cites·35 claims
- 0396US6736009B1Measurement system comprising an acceleration sensor and a position sensorHEIDENHAIN GMBH DR JOHANNES·Filed 2000·Granted May 18, 2004·106 cites·23 claims
- 0496US4776701ADisplacement measuring apparatus and methodHEIDENHAIN GMBH DR JOHANNES·Filed 1985·Granted Oct 11, 1988·89 cites·13 claims
- 0595US4390239AProjection screenHEIDENHAIN GMBH DR JOHANNES·Filed 1981·Granted Jun 28, 1983·53 cites·28 claims
- 0694US5396328AWaveguide type displacement interferometer having two reference pathsHEIDENHAIN GMBH DR JOHANNES·Filed 1991·Granted Mar 7, 1995·114 cites·7 claims
- 0794US4595991APosition measuring method and apparatusHEIDENHAIN GMBH DR JOHANNES·Filed 1983·Granted Jun 17, 1986·54 cites·13 claims
- 0894US4385836APhotoelectric digital position measuring systemHEIDENHAIN GMBH DR JOHANNES·Filed 1981·Granted May 31, 1983·56 cites·25 claims
- 0994US4225931AInterpolation apparatus for digital electronic position measuring instrumentHEIDENHAIN GMBH DR JOHANNES·Filed 1978·Granted Sep 30, 1980·56 cites·8 claims
- 1093US4990767APosition measuring apparatus with multiple scanning locationsHEIDENHAIN GMBH DR JOHANNES·Filed 1988·Granted Feb 5, 1991·67 cites·7 claims
- 1192US9383184B2Inductive position-measuring deviceHEIDENHAIN GMBH DR JOHANNES·Filed 2013·Granted Jul 5, 2016·14 cites·19 claims
- 1292US7907286B2Optical position-measuring deviceHEIDENHAIN GMBH DR JOHANNES·Filed 2008·Granted Mar 15, 2011·17 cites·18 claims
- 1392US4320578AMeasuring instrument mounting apparatusHEIDENHAIN GMBH DR JOHANNES·Filed 1979·Granted Mar 23, 1982·44 cites·10 claims
- 1491US5631736AAbsolute interferometer measuring process and apparatus having a measuring interferometer, control interferometer and tunable laserHEIDENHAIN GMBH DR JOHANNES·Filed 1996·Granted May 20, 1997·103 cites·20 claims
- 1591US4530159AMulticoordinate sensing headHEIDENHAIN GMBH DR JOHANNES·Filed 1983·Granted Jul 23, 1985·45 cites·11 claims
- 1691US4160328ASegmented longitudinal measuring deviceHEIDENHAIN GMBH DR JOHANNES·Filed 1978·Granted Jul 10, 1979·38 cites·11 claims
- 1790US11187516B2Angle measuring deviceHEIDENHAIN GMBH DR JOHANNES·Filed 2020·Granted Nov 30, 2021·2 cites·11 claims
- 1890US7719264B2Rotary transducer and method for operating a rotary transducerHEIDENHAIN GMBH DR JOHANNES·Filed 2007·Granted May 18, 2010·20 cites·29 claims
- 1990US6930461B2Device and method for controlling a machine toolHEIDENHAIN GMBH DR JOHANNES·Filed 2001·Granted Aug 16, 2005·71 cites·16 claims
- 2090US6683545B2Multiturn rotary encoder with detector devices on a shared side of a printed circuit boardHEIDENHAIN GMBH DR JOHANNES·Filed 2001·Granted Jan 27, 2004·38 cites·14 claims
- 2190US6462535B1Eddy current sensor with a modification coil for reducing extensive heating and a method for operating such an eddy current sensorHEIDENHAIN GMBH DR JOHANNES·Filed 2000·Granted Oct 8, 2002·44 cites·23 claims
- 2290US6311402B1Rotary transducerHEIDENHAIN GMBH DR JOHANNES·Filed 2000·Granted Nov 6, 2001·31 cites·16 claims
- 2390US6111402APosition measuring instrument having a scanning element with multiple scanning tracksHEIDENHAIN GMBH DR JOHANNES·Filed 1997·Granted Aug 29, 2000·78 cites·63 claims
- 2489US11486740B2Angle measuring device and method for operating an angle measuring deviceHEIDENHAIN GMBH DR JOHANNES·Filed 2020·Granted Nov 1, 2022·3 cites·17 claims
- 2589US10645810B2Sensor for measuring a positionHEIDENHAIN GMBH DR JOHANNES·Filed 2017·Granted May 5, 2020·6 cites·19 claims
- 2689US7471397B2Position-measuring deviceHEIDENHAIN GMBH DR JOHANNES·Filed 2006·Granted Dec 30, 2008·16 cites·21 claims
- 2789US7019842B2Position measuring deviceHEIDENHAIN GMBH DR JOHANNES·Filed 2001·Granted Mar 28, 2006·45 cites·18 claims
- 2888US12098919B2Device and method for determining a contact between a tool and a workpieceHEIDENHAIN GMBH DR JOHANNES·Filed 2022·Granted Sep 24, 2024·2 cites·18 claims
- 2988US9772204B2Length-measuring deviceHEIDENHAIN GMBH DR JOHANNES·Filed 2015·Granted Sep 26, 2017·7 cites·16 claims
- 3088US6542088B1Multiturn rotary encoder with multiple code carriers coupled by a reduction gearHEIDENHAIN GMBH DR JOHANNES·Filed 1999·Granted Apr 1, 2003·73 cites·12 claims
- 3188US6392224B1Scanning unit for an optical position measuring deviceHEIDENHAIN GMBH DR JOHANNES·Filed 1998·Granted May 21, 2002·57 cites·42 claims
- 3288US6349481B1Device and method for attaching a scaleHEIDENHAIN GMBH DR JOHANNES·Filed 2000·Granted Feb 26, 2002·34 cites·18 claims
- 3388US4612502AMagnetic length or angle measuring system having improved magnetic sensor arrangementHEIDENHAIN GMBH DR JOHANNES·Filed 1983·Granted Sep 16, 1986·41 cites·18 claims
- 3488US4519140ASystem for identifying reference marks in a path measuring deviceHEIDENHAIN GMBH DR JOHANNES·Filed 1982·Granted May 28, 1985·40 cites·11 claims
- 3587US9234734B2Length measuring instrumentHEIDENHAIN GMBH DR JOHANNES·Filed 2013·Granted Jan 12, 2016·16 cites·10 claims
- 3687US7858922B2Position-measuring deviceHEIDENHAIN GMBH DR JOHANNES·Filed 2007·Granted Dec 28, 2010·16 cites·20 claims
- 3787US6999841B1Control system of a numerical tool machine with a reusable software structureHEIDENHAIN GMBH DR JOHANNES·Filed 2000·Granted Feb 14, 2006·34 cites·6 claims
- 3887US6828783B2Angle measuring instrument for a rotating shaftHEIDENHAIN GMBH DR JOHANNES·Filed 2002·Granted Dec 7, 2004·33 cites·79 claims
- 3987US6774598B1Method and circuitry for producing nominal position values for a closed loop position control of a numerically continuous-path controlled machineHEIDENHAIN GMBH DR JOHANNES·Filed 2000·Granted Aug 10, 2004·64 cites·13 claims
- 4087US6472658B2Photoelectric position measuring system that optimizes modulation of a scanning device and the intensity of a reference mark signalHEIDENHAIN GMBH DR JOHANNES·Filed 2001·Granted Oct 29, 2002·31 cites·26 claims
- 4187US6410910B1Angle measuring systemHEIDENHAIN GMBH DR JOHANNES·Filed 2000·Granted Jun 25, 2002·32 cites·40 claims
- 4287US5687103APosition measuring deviceHEIDENHAIN GMBH DR JOHANNES·Filed 1995·Granted Nov 11, 1997·76 cites·22 claims
- 4387US4942295AApparatus for angle measurement with installation meansHEIDENHAIN GMBH DR JOHANNES·Filed 1989·Granted Jul 17, 1990·58 cites·16 claims
- 4487US4495700AApparatus for measuring the angular displacement of two objects relative to each otherHEIDENHAIN GMBH DR JOHANNES·Filed 1983·Granted Jan 29, 1985·35 cites·23 claims
- 4586US7796272B2Position-measuring device for measuring a position of an object relative to a tool having a tool centerpointHEIDENHAIN GMBH DR JOHANNES·Filed 2008·Granted Sep 14, 2010·11 cites·20 claims
- 4686US7710578B2Position measuring arrangementHEIDENHAIN GMBH DR JOHANNES·Filed 2007·Granted May 4, 2010·15 cites·25 claims
- 4786US6198534B1Scanning unit for an optical position measuring systemHEIDENHAIN GMBH DR JOHANNES·Filed 1998·Granted Mar 6, 2001·55 cites·29 claims
- 4886US5428445AInterferential position measuring deviceHEIDENHAIN GMBH DR JOHANNES·Filed 1992·Granted Jun 27, 1995·47 cites·29 claims
- 4986US4782229APhotoelectric displacement measuring device for obtaining harmonic free signalsHEIDENHAIN GMBH DR JOHANNES·Filed 1987·Granted Nov 1, 1988·41 cites·8 claims
- 5086US4636076ADisplacement measuring apparatus and methodHEIDENHAIN GMBH DR JOHANNES·Filed 1984·Granted Jan 13, 1987·35 cites·18 claims
Showing the top 50 of 842 patent records by PatentIndex Score.
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