Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
James Caudill0
Jose Sasian0
Peter Yantzer0
Date of Patent
February 26, 2008
Patent Application Number
11018042
Date Filed
December 20, 2004
Patent Citations Received
Patent Primary Examiner
Patent abstract
Methods for grading gemstones, apparatus for grading gemstones, and systems that utilize such methods and apparatus, specifically methods which trace rays through a computer representation of a gemstone wherein the rays enter the gemstone though the gemstone crown and allow a grade to be assigned to the gemstone represented based on the ray paths through the representation.
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