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Erwin Spanner
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Traunstein, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Optical position measuring device
Patent number
9,733,068
Issue date
Aug 15, 2017
Dr. Johannes Heidenhain GmbH
Jörg Drescher
G01 - MEASURING TESTING
Information
Patent Grant
Interferometer
Patent number
9,188,424
Issue date
Nov 17, 2015
Dr. Johannes Heidenhain GmbH
Wolfgang Holzapfel
G01 - MEASURING TESTING
Information
Patent Grant
Optical position measuring arrangement
Patent number
7,701,593
Issue date
Apr 20, 2010
Dr. Johannes Heidenhain GmbH
Wolfgang Holzapfel
G01 - MEASURING TESTING
Information
Patent Grant
Position-measuring device for determining the position of two objec...
Patent number
7,639,366
Issue date
Dec 29, 2009
Dr. Johannes Heidenhain GmbH
Erwin Spanner
G01 - MEASURING TESTING
Information
Patent Grant
Optics system for an interferometer that uses a measuring mirror, a...
Patent number
7,542,149
Issue date
Jun 2, 2009
Dr. Johannes Heidenhain GmbH
Erwin Spanner
G01 - MEASURING TESTING
Information
Patent Grant
Device for position indication and detection of guidance errors
Patent number
6,907,372
Issue date
Jun 14, 2005
Dr. Johannes Heidenhain GmbH
Erwin Spanner
G01 - MEASURING TESTING
Information
Patent Grant
Optical position measuring device with a beam splitter
Patent number
6,535,290
Issue date
Mar 18, 2003
Johannes Heidenhain GmbH
Erwin Spanner
G01 - MEASURING TESTING
Information
Patent Grant
Position measuring system and method for operating a position measu...
Patent number
6,265,992
Issue date
Jul 24, 2001
Dr. Johannes Heidenhain GmbH
Rainer Hagl
G01 - MEASURING TESTING
Information
Patent Grant
Position measuring system and method for operating a position measu...
Patent number
6,097,318
Issue date
Aug 1, 2000
Dr. Johannes Heidenhain GmbH
Rainer Hagl
G01 - MEASURING TESTING
Information
Patent Grant
Optical position-measuring device having reference mark graduation...
Patent number
5,977,539
Issue date
Nov 2, 1999
Dr. Johannes Heidenhain GmbH
Wolfgang Holzapfel
G01 - MEASURING TESTING
Information
Patent Grant
Phase grating and method of producing phase grating
Patent number
5,786,931
Issue date
Jul 28, 1998
Johannes Heidenhain GmbH
Peter Speckbacher
G02 - OPTICS
Information
Patent Grant
Linear encoder
Patent number
5,711,084
Issue date
Jan 27, 1998
Dr. Johannes Heidenhain GmbH
Erwin Spanner
G01 - MEASURING TESTING
Information
Patent Grant
Dual-beam interferometer with a phase grating
Patent number
5,574,560
Issue date
Nov 12, 1996
Dr. Johannes Heidenhain GmbH
Andreas Franz
G01 - MEASURING TESTING
Information
Patent Grant
Photoelectric position measuring system with integral optical circu...
Patent number
5,500,734
Issue date
Mar 19, 1996
Dr. Johannes Heidenhain GmbH
Erwin Spanner
G01 - MEASURING TESTING
Information
Patent Grant
Polarizing interferometric displacement measuring arrangement
Patent number
5,333,048
Issue date
Jul 26, 1994
Dr. Johannes Heidenhain GmbH
Dieter Michel
G01 - MEASURING TESTING
Information
Patent Grant
Position measuring apparatus and method of use thereof
Patent number
5,206,704
Issue date
Apr 27, 1993
Dr. Johannes Heidenhain GmbH
Walter Huber
G01 - MEASURING TESTING
Information
Patent Grant
Position measuring apparatus with reflection
Patent number
5,079,418
Issue date
Jan 7, 1992
Dr. Johannes Heidenhain GmbH
Dieter Michel
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
Optical Position Measuring Device
Publication number
20150354944
Publication date
Dec 10, 2015
DR. JOHANNES HEIDENHAN GMBH
Jörg Drescher
G01 - MEASURING TESTING
Information
Patent Application
Interferometer
Publication number
20140176962
Publication date
Jun 26, 2014
Dr. Johannes Heidenhain Gmbh
Wolfgang Holzapfel
G01 - MEASURING TESTING
Information
Patent Application
Optical position measuring arrangement
Publication number
20080297809
Publication date
Dec 4, 2008
Wolfgang Holzapfel
G01 - MEASURING TESTING
Information
Patent Application
Optics system for an interferometer
Publication number
20070188767
Publication date
Aug 16, 2007
Erwin Spanner
G01 - MEASURING TESTING
Information
Patent Application
Position-measuring device for determining the position of two objec...
Publication number
20060262315
Publication date
Nov 23, 2006
Erwin Spanner
G01 - MEASURING TESTING