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Product label, method of producing product labels and method for identifying products in a contactless and forgery-proof manner

  • US 7,012,531 B2
  • Filed: 06/07/2002
  • Issued: 03/14/2006
  • Est. Priority Date: 12/07/1999
  • Status: Expired due to Fees
First Claim
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1. A product label, comprising:

  • a semiconductor chip for storing information related to a product;

    an antenna operatively connected to said semiconductor chip, said antenna being configured to transmit the information related to the product with a first energy at a first frequency to a reading device;

    said antenna having a cross-section and a predetermined breaking point, said predetermined breaking point being configured as a narrowing in said cross section; and

    said antenna being destructible at said predetermined breaking point by a second energy having a second frequency introduced with the reading device during a reading operation such that the product label is no longer legible after the energy has been introduced.

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