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:
Nov. 23, 1999
Filed:
Aug. 06, 1996
Applicant:
Inventor:
Mark A Litman, Edina, MN (US);
Assignee:
Aveka, Inc., Woodbury, MN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K / ; G06K / ;
U.S. Cl.
CPC ...
235450 ; 235449 ; 235491 ; 235493 ;
Abstract
Elongated magnetic elements can be inserted into items to provide readable magnetic patterns which provide reproducible or unique signal patterns to identify or authenticate the items. Magnetic fibers may be distributed within items or magnetic strips to provide reproducible patterns when read. The patterns are stable because of the relatively large size of the magnetic elements as compared to conventional patterns of particles in recordable media. Oriented patterns of filaments may also be inserted into transactional items such as credit cards, checks and the like to provide identification (antiforgery) security to the item.