Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
November 1, 2011
Patent Application Number
12302840
Date Filed
June 6, 2007
Patent Citations Received
...
Patent Primary Examiner
Patent abstract
An ink formulation comprises a marking component, e.g. ammonium octamolybdate, and a metal salt that absorbs laser irradiation at 780-2500 nm, e.g. reduced indium tin oxide, and thereby causes the marking component to change colour.
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