Is a
Patent attributes
Patent Applicant
0
Patent Jurisdiction
Patent Number
Patent Inventor Names
Nazir Khan0
Date of Patent
May 3, 2005
0Patent Application Number
103443930
Date Filed
February 27, 2002
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A method for making an object, wherein the object comprises a material including a functional group and a metal compound or acid that causes an elimination reaction on irradiation with a laser, to form a reaction product of contrasting colour, comprises directing a laser beam on to the areas of the object to be marked. For example, by using a carbohydrate and a metal salt, effective marking can be achieved on the coating of a pill or other edible material.
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