TREA

D. Emil Johnson

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  • Canandaigua, NY, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Process of an apparatus for extruding a meltable composition
    • Patent number 4,842,788
    • Issue date Jun 27, 1989
    • Mobil Oil Corporation
    • D. Emil Johnson
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Vaulted screw/grooved barrel extrusion machine, method and system
    • Patent number 4,832,889
    • Issue date May 23, 1989
    • Mobil Oil Corporation
    • D. Emil Johnson
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Method and apparatus for extrusion of thermoplastic foam
    • Patent number 4,470,938
    • Issue date Sep 11, 1984
    • Mobil Oil Corporation
    • D. Emil Johnson
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Polymer foam process
    • Patent number 4,424,287
    • Issue date Jan 3, 1984
    • Mobil Oil Corporation
    • D. Emil Johnson
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Production of foamed polymer
    • Patent number 4,352,893
    • Issue date Oct 5, 1982
    • Mobil Oil Corporation
    • D. Emil Johnson
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Polymer foam extrusion system
    • Patent number 4,344,710
    • Issue date Aug 17, 1982
    • Mobil Oil Corporation
    • D. Emil Johnson
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL