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Donald Campbell

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  • Albuquerque, NM, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ventilated toilet assembly
    • Patent number 10,161,123
    • Issue date Dec 25, 2018
    • Donald Campbell
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Ventilated toilet assembly
    • Patent number 9,644,360
    • Issue date May 9, 2017
    • Donald Campbell
    • E03 - WATER SUPPLY SEWERAGE

Patents Applicationslast 30 patents

  • Information Patent Application

    Ventilated Toilet Assembly
    • Publication number 20170138033
    • Publication date May 18, 2017
    • Donald Campbell
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    Ventilated Toilet Assembly
    • Publication number 20160265207
    • Publication date Sep 15, 2016
    • Donald Campbell
    • E03 - WATER SUPPLY SEWERAGE