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US 2006/0124260 A1Published application
Bistable watermark
AssigneeEastman Kodak Company
InventorsXiang-Dong Mi, Stanley Stephenson
Life of this patent
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Abstract
A watermark formed of a bistable material, and a method of forming the watermark, are described.
Claims31
A material comprising a watermark area, wherein the watermark area comprises a substrate and a layer of bistable material.
A method of forming a material comprising a watermark area, wherein the method comprises:
- forming the watermark area comprising a substrate and a layer of bistable material on the substrate;
- and
- joining the watermark area with the material.
Dependencies are inferred from the claim text.