TREA

John M. Stewart

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  • Ontario, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Portable toilet
    • Patent number 4,764,994
    • Issue date Aug 23, 1988
    • Sanitation Equipment Limited
    • John M. Stewart
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Flush toilet
    • Patent number 4,710,988
    • Issue date Dec 8, 1987
    • Sanitation Equipment Limited
    • John M. Stewart
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Toilet with sight gauge
    • Patent number 4,603,443
    • Issue date Aug 5, 1986
    • Sanitation Equipment Limited
    • John M. Stewart
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Toilet
    • Patent number 4,439,875
    • Issue date Apr 3, 1984
    • Sanitation Equipment Limited
    • John M. Stewart
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Portable toilets
    • Patent number 4,091,475
    • Issue date May 30, 1978
    • Sanitation Equipment Limited
    • Clifford Bruce Hewson
    • E03 - WATER SUPPLY SEWERAGE