The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 2002
Filed:
Mar. 13, 2000
David Brian Edwards, Stevenage, GB;
Aquasol Ltd., Chemsford, GB;
Abstract
Machine readable coded markings carried on articles to identify various properties of the articles are disclosed. The coded markings are formed integrally of the article in the form of a sequence of areas having contrasting light scattering and reflecting properties incorporated on the article's surface. The areas are arranged in the form of neighboring blocks and empty spaces disposed around and outside of a central target area defined by a sequence of concentric continuous markings, the blocks forming a series of layers containing coded information. Each of the blocks is positioned side-by-side contiguous either with the outermost ring of the target or with a block in a previous layer.