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Daniel R. Wigman

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  • Harleysville, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Flexible packages with clog resistant degassing valve and methods o...
    • Patent number 10,486,881
    • Issue date Nov 26, 2019
    • Fres-co System USA, Inc.
    • Daniel Wigman
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Flexible gusseted bag
    • Patent number D812490
    • Issue date Mar 13, 2018
    • Fres-co System USA, Inc.
    • Daniel Wigman
    • D09 - Packages and containers for goods
  • Information Patent Grant

    Flexible gusseted bag
    • Patent number D812491
    • Issue date Mar 13, 2018
    • Fres-co System USA, Inc.
    • Daniel Wigman
    • D09 - Packages and containers for goods
  • Information Patent Grant

    Flexible gusseted bag
    • Patent number D811896
    • Issue date Mar 6, 2018
    • Fres-co System USA, Inc.
    • Daniel Wigman
    • D09 - Packages and containers for goods
  • Information Patent Grant

    Flexible gusseted bag
    • Patent number D809928
    • Issue date Feb 13, 2018
    • Fres-co System USA, Inc.
    • Daniel Wigman
    • D09 - Packages and containers for goods
  • Information Patent Grant

    Filter bag with valve
    • Patent number 6,070,728
    • Issue date Jun 6, 2000
    • Fres-co System USA, Inc.
    • Douglas J. Overby
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Gussetted flexible package with tear notch to form pour spout
    • Patent number 5,060,803
    • Issue date Oct 29, 1991
    • Jeffrey S. Beer
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL

Patents Applicationslast 30 patents