TREA

Helmut Welker

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  • Jamestown, NY, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Microwave coffee brewer and travel mug
    • Patent number 5,168,140
    • Issue date Dec 1, 1992
    • Helmut Welker
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Microwave brewing cup
    • Patent number 4,721,835
    • Issue date Jan 26, 1988
    • Helmut Welker
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL