TREA

Timothy C. Y. Wang

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  • Rochester, NY, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Snow making apparatus and method
    • Patent number 8,376,245
    • Issue date Feb 19, 2013
    • Ratnik Industries, Inc.
    • Heldur R. Ratnik
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Method and apparatus for making snow
    • Patent number 5,884,841
    • Issue date Mar 23, 1999
    • Ratnik Industries, Inc.
    • H. Ronald Ratnik
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Fanless snow gun
    • Patent number 5,699,961
    • Issue date Dec 23, 1997
    • Ratnik Industries, Inc.
    • H. Ronald Ratnik
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...

Patents Applicationslast 30 patents

  • Information Patent Application

    Snow Making Apparatus and Method
    • Publication number 20110174895
    • Publication date Jul 21, 2011
    • Heldur R. Ratnik
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...