Assignee
JOHANNAS HEIDENHAIN GMBH DR
DE·4 granted patents·86 citations·filing 1997–2003
Top patents by PatentIndex Score
4 records- 0184US6541761B1Optical 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
- 0278US6794637B1Optical device for measuring positionJOHANNAS HEIDENHAIN GMBH DR·Filed 2000·Granted Sep 21, 2004·20 cites·7 claims
- 0368US6445456B2Photoelectric position measuring deviceJOHANNAS HEIDENHAIN GMBH DR·Filed 1997·Granted Sep 3, 2002·31 cites·21 claims
- 0452US6825647B2Method for testing a frequency converterJOHANNAS HEIDENHAIN GMBH DR·Filed 2003·Granted Nov 30, 2004·6 cites·6 claims
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