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Devices and methods for determining the amount of individual usage of a shared commodity

  • US 7,766,231 B2
  • Filed: 06/24/2005
  • Issued: 08/03/2010
  • Est. Priority Date: 06/24/2005
  • Status: Active Grant
First Claim
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1. A method for tracking individual commodity-user consumption of a commodity delivered from a common source to two or more commodity-users, comprising:

  • determining an amount of the commodity drawn from the common source by the two or more commodity users;

    determining a commodity-user-state that indicates use of the commodity by each of at least two commodity-users; and

    reporting an individual commodity-user consumption of the commodity for said each of the at least two commodity-users, as a function of repeated determinations of the amount of the commodity drawn from the common source and the commodity-user-state, for a number of repetitions greater than or equal to the number of commodity-users.

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