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Seal method and system for packages

  • US 7,372,366 B2
  • Filed: 05/10/2005
  • Issued: 05/13/2008
  • Est. Priority Date: 05/10/2005
  • Status: Expired due to Fees
First Claim
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1. A seal for an individual package, comprising:

  • a resonant circuit associated with an individual product contained in the individual package and having a predetermined resonant frequency that changes under mechanical deformation resulting from tampering;

    an attaching material coupled to the circuit for attaching the circuit to the package and printed with a first identifier to determine a seal type; and

    a storage area in the seal for storing a second identifier to individually identify the resonant circuit and for cross-referencing with a database the predetermined resonant frequency of the resonant circuit prior to potential tampering along with one or more characteristics of the seal to establish an untampered state for the seal and one or more predetermined qualities of the seal.

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