US Patent 7540357 Position reference system for elevators
Patent 7540357 was granted and assigned to Otis Elevator Company on June, 2009 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
May 15, 2003
0
Date of Patent
June 2, 2009
0
Patent Application Number
10557232
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Patent Citations Received
Patent Inventor Names
Chris Pietrzykowski
0
Alan Finn
0
Jae-Hyuk Oh
0
Pei-Yuan Peng
0
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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