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Paul E. Koch

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  • Chagrin Falls, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of coextruding diverse materials
    • Patent number 4,405,547
    • Issue date Sep 20, 1983
    • The Standard Oil Company
    • Paul E. Koch
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Coextrusion device
    • Patent number 4,336,012
    • Issue date Jun 22, 1982
    • The Standard Oil Company
    • Paul E. Koch
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL