Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Dale N. Memering0
Michael M. Li0
Date of Patent
March 21, 2017
0Patent Application Number
147059550
Date Filed
May 6, 2015
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A manufacturing method for sapphire crystal material is disclosed, including a laser-etched bar code formed into the interior of the sapphire crystal material. The laser-etched bar code may be associated with one or more manufacturing parameters or other manufacturing data. The sapphire crystal may be used to create a cover sheet for use with a display screen of a portable electronic device.
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