TREA

Robert J. Marcinkewicz

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  • Plainwell, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of making a foam insulated water heater
    • Patent number 5,023,031
    • Issue date Jun 11, 1991
    • Bradford-White Corporation
    • Eugene L. West
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Method of making a foam insulated water heater
    • Patent number 5,000,893
    • Issue date Mar 19, 1991
    • Bradford-White Corporation
    • Eugene L. West
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Method of making a foam insulated water heater
    • Patent number 4,904,428
    • Issue date Feb 27, 1990
    • Bradford-White Corporation
    • Eugene L. West
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Method for insulating a water heater
    • Patent number 4,808,356
    • Issue date Feb 28, 1989
    • Bradford-White Corporation
    • Eugene L. West
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL