TREA

Charles Perry Butterfield

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  • Boulder, CO, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Air gap control systems and methods
    • Patent number 10,193,429
    • Issue date Jan 29, 2019
    • Boulder Wind Power, Inc.
    • James S. Smith
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Air gap control systems and methods
    • Patent number 9,479,038
    • Issue date Oct 25, 2016
    • Boulder Wind Power, Inc.
    • James S. Smith
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Air gap control systems and methods
    • Patent number 8,362,731
    • Issue date Jan 29, 2013
    • Boulder Wind Power, Inc.
    • James S. Smith
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

  • Information Patent Application

    AIR GAP CONTROL SYSTEMS AND METHODS
    • Publication number 20190245421
    • Publication date Aug 8, 2019
    • BOULDER WIND POWER, INC.
    • James S. SMITH
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    AIR GAP CONTROL SYSTEMS AND METHODS
    • Publication number 20170040878
    • Publication date Feb 9, 2017
    • Boulder Wind Power, Inc.
    • James S. SMITH
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    AIR GAP CONTROL SYSTEMS AND METHODS
    • Publication number 20130119802
    • Publication date May 16, 2013
    • BOULDER WIND POWER, INC.
    • James S. Smith
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER