Inventor · disambiguated record
Wolfgang Holzapfel
Also filed as: HOLZAPFEL WOLFGANG · HOLZAPFEL WOLFGANG DR
121 granted patents·4 pending applications·1,451 citations·filing 1979–2024
99Inventor score
Files withHEIDENHAIN GMBH DR JOHANNES96HOLZAPFEL WOLFGANG9RATIONAL AG3JOHANNAS HEIDENHAIN GMBH DR2BOCK GERHARD1
Top patents by PatentIndex Score
125 records- 0196US7573581B2Position-measuring deviceHEIDENHAIN GMBH DR JOHANNES·Filed 2006·Granted Aug 11, 2009·38 cites·35 claims
- 0292US7907286B2Optical position-measuring deviceHEIDENHAIN GMBH DR JOHANNES·Filed 2008·Granted Mar 15, 2011·17 cites·18 claims
- 0390US4413905ALaser range meterHONEYWELL INC·Filed 1979·Granted Nov 8, 1983·52 cites·15 claims
- 0489US7471397B2Position-measuring deviceHEIDENHAIN GMBH DR JOHANNES·Filed 2006·Granted Dec 30, 2008·16 cites·21 claims
- 0589US7019842B2Position measuring deviceHEIDENHAIN GMBH DR JOHANNES·Filed 2001·Granted Mar 28, 2006·45 cites·18 claims
- 0688US6392224B1Scanning unit for an optical position measuring deviceHEIDENHAIN GMBH DR JOHANNES·Filed 1998·Granted May 21, 2002·57 cites·42 claims
- 0787US7858922B2Position-measuring deviceHEIDENHAIN GMBH DR JOHANNES·Filed 2007·Granted Dec 28, 2010·16 cites·20 claims
- 0887US6472658B2Photoelectric 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
- 0986US8804131B2Optical angle-measuring device with combined radial-circular gratingHOLZAPFEL WOLFGANG·Filed 2011·Granted Aug 12, 2014·6 cites·15 claims
- 1086US7796272B2Position-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
- 1186US7710578B2Position measuring arrangementHEIDENHAIN GMBH DR JOHANNES·Filed 2007·Granted May 4, 2010·15 cites·25 claims
- 1286US6198534B1Scanning unit for an optical position measuring systemHEIDENHAIN GMBH DR JOHANNES·Filed 1998·Granted Mar 6, 2001·55 cites·29 claims
- 1386US5428445AInterferential position measuring deviceHEIDENHAIN GMBH DR JOHANNES·Filed 1992·Granted Jun 27, 1995·47 cites·29 claims
- 1484US6605828B1Optoelectronic component with a space kept free from underfillerHEIDENHAIN GMBH DR JOHANNES·Filed 1999·Granted Aug 12, 2003·61 cites·23 claims
- 1584US6541761B1Optical position measuring system with a graduation that causes essentially only first orders of diffractionJOHANNAS HEIDENHAIN GMBH DR·Filed 2000·Granted Apr 1, 2003·29 cites·27 claims
- 1684US5956659AArrangement and method for the automatic correction of error-containing scanning signals of incremental position-measuring devicesHEIDENHAIN GMBH DR JOHANNES·Filed 1998·Granted Sep 21, 1999·52 cites·21 claims
- 1783US6470577B1Angle measuring system and use of this angle measuring system in a spindle arrangementHEIDENHAIN GMBH DR JOHANNES·Filed 2000·Granted Oct 29, 2002·19 cites·21 claims
- 1882US7549234B2Method for mounting a scale on a support and arrangement with a support and a scaleHEIDENHAIN GMBH DR JOHANNES·Filed 2007·Granted Jun 23, 2009·10 cites·19 claims
- 1981US7348546B2Position measuring system with a scanning unit having a reference pulse signal detection unitHEIDENHAIN GMBH DR JOHANNES·Filed 2006·Granted Mar 25, 2008·15 cites·26 claims
- 2081US4299484ARange and speed measuring equipment with noise frequency modulated transmitterHONEYWELL GMBH·Filed 1979·Granted Nov 10, 1981·31 cites·14 claims
- 2180US6528779B1Optoelectronic moduleHEIDENHAIN GMBH DR JOHANNES·Filed 1999·Granted Mar 4, 2003·47 cites·66 claims
- 2280US5977539AOptical position-measuring device having reference mark graduation structures with chirp fieldsHEIDENHAIN GMBH DR JOHANNES·Filed 1997·Granted Nov 2, 1999·44 cites·16 claims
- 2379US8477316B2Interferometer system and method for its operationHOLZAPFEL WOLFGANG·Filed 2008·Granted Jul 2, 2013·10 cites·35 claims
- 2479US5994692APhoto-electric position measuring system having a scanning grating with transverse graduationsHEIDENHAIN GMBH DR JOHANNES·Filed 1998·Granted Nov 30, 1999·51 cites·49 claims
- 2578US10060765B2Optical position-measuring deviceHEIDENHAIN GMBH DR JOHANNES·Filed 2017·Granted Aug 28, 2018·2 cites·14 claims
- 2678US8822907B2Optical position-measuring device having two crossed scalesJOERGER RALPH·Filed 2011·Granted Sep 2, 2014·5 cites·14 claims
- 2778US6794637B1Optical device for measuring positionJOHANNAS HEIDENHAIN GMBH DR·Filed 2000·Granted Sep 21, 2004·20 cites·7 claims
- 2878US6452159B2Position measuring systemHEIDENHAIN GMBH DR JOHANNES·Filed 2000·Granted Sep 17, 2002·31 cites·27 claims
- 2978US5576537APhotoelectric position measuring system using gratings having specified dimensions to suppress harmonicsHEIDENHAIN GMBH DR JOHANNES·Filed 1994·Granted Nov 19, 1996·43 cites·18 claims
- 3077US9200927B2Position-measuring deviceHEIDENHAIN GMBH DR JOHANNES·Filed 2013·Granted Dec 1, 2015·3 cites·14 claims
- 3177US6603114B1Scanning head comprising a semiconductor substrate with a blind hole containing a light sourceHEIDENHAIN GMBH DR JOHANNES·Filed 1999·Granted Aug 5, 2003·34 cites·28 claims
- 3276US8994958B2Optical position measuring instrumentHOLZAPFEL WOLFGANG·Filed 2011·Granted Mar 31, 2015·3 cites·15 claims
- 3375US9848730B2Food carrier and grilling accessoryRATIONAL AG·Filed 2014·Granted Dec 26, 2017·3 cites·9 claims
- 3475US6885457B1Rotary position measuring systemHEIDENHAIN GMBH DR JOHANNES·Filed 1999·Granted Apr 26, 2005·33 cites·25 claims
- 3575US6526190B2Position measuring systemHEIDENHAIN GMBH DR JOHANNES·Filed 2001·Granted Feb 25, 2003·18 cites·30 claims
- 3674US6552810B1Optical measuring systemJOHANNES HIEDENHEIN GMBH DR·Filed 2000·Granted Apr 22, 2003·21 cites·19 claims
- 3774US5648658AApparatus and method for generating position-dependent signals using a scanning plate having a plurality of differently configured scanning regionsHEIDENHAIN GMBH DR JOHANNES·Filed 1995·Granted Jul 15, 1997·32 cites·36 claims
- 3871US7707739B2Method for attaching a scale to a carrier, a scale, and carrier having a scaleHEIDENHAIN GMBH DR JOHANNES·Filed 2006·Granted May 4, 2010·6 cites·17 claims
- 3971US6175414B1Optical position measuring deviceHEIDENHAIN GMBH DR JOHANNES·Filed 1999·Granted Jan 16, 2001·30 cites·11 claims
- 4070US9733069B2Optical position-measuring deviceHEIDENHAIN GMBH DR JOHANNES·Filed 2016·Granted Aug 15, 2017·1 cites·13 claims
- 4170US6995836B1Angle measuring systemHEIDENHAIN GMBH DR JOHANNES·Filed 2000·Granted Feb 7, 2006·13 cites·32 claims
- 4270US6097490AOptical position measuring instrument for generating a reference pulse signalHEIDENHAIN GMBH DR JOHANNES·Filed 1998·Granted Aug 1, 2000·28 cites·37 claims
- 4369US10746532B2Device for interferometric distance measurementHEIDENHAIN GMBH DR JOHANNES·Filed 2018·Granted Aug 18, 2020·1 cites·19 claims
- 4469US8848184B2Optical position-measuring deviceHOLZAPFEL WOLFGANG·Filed 2011·Granted Sep 30, 2014·2 cites·15 claims
- 4569US5973620AControl device and process for testing position dependent signals of a position measuring deviceHEIDENHAIN GMBH DR JOHANNES·Filed 1997·Granted Oct 26, 1999·28 cites·24 claims
- 4668US9303980B2System for positioning a tool relative to a workpieceHEIDENHAIN GMBH DR JOHANNES·Filed 2014·Granted Apr 5, 2016·3 cites·10 claims
- 4768US7268883B2Optoelectronic harmonically filtered detector system for a scanning unitHEIDENHAIN GMBH DR JOHANNES·Filed 2004·Granted Sep 11, 2007·11 cites·16 claims
- 4868US6912476B2Position measuring device and method for determining a positionJOHANNAS HEIDENHAM GMBH·Filed 2001·Granted Jun 28, 2005·13 cites·8 claims
- 4967US9151593B2System and method for positioning a processing tool in relation to a workpieceHEIDENHAIN GMBH DR JOHANNES·Filed 2013·Granted Oct 6, 2015·2 cites·7 claims
- 5067US7154609B2Interferential position measuring arrangementHEIDENHAIN GMBH DR JOHANNES·Filed 2003·Granted Dec 26, 2006·12 cites·32 claims
Showing the top 50 of 125 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →