US Patent 8520323 Reducing micro-defects in Fresnel lenses
Patent 8520323 was granted and assigned to Prysm on August, 2013 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
August 31, 2011
Date of Patent
August 27, 2013
Patent Application Number
13223089
Patent Citations Received
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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