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Method and system for marking manufactured items to detect unauthorized refilling

  • US 10,068,111 B2
  • Filed: 06/19/2015
  • Issued: 09/04/2018
  • Est. Priority Date: 06/23/2014
  • Status: Active Grant
First Claim
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1. An apparatus for marking a manufactured item, the manufactured item comprising a container and a removable closure for the container, the apparatus comprising:

  • one or more computer processors for generating a first code for the container and a second code for the closure;

    at least one marker configured to mark the container with the first code and the closure with the second code;

    wherein the first code and the second code are different but interrelated such that at least a portion of one of the first code and the second code can be derived from the other of the first code and the second code, and wherein at least a portion of the first or second code is derived by performing a cryptographic process on the other of the first or second code.

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