TREA

Steven H. Bietzer

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  • Sunnyvale, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for forming cap with tear line
    • Patent number 6,177,041
    • Issue date Jan 23, 2001
    • Portola Packaging, Inc.
    • Steven H. Bietzer
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Cap skirt with single bead and container neck structure
    • Patent number 6,082,567
    • Issue date Jul 4, 2000
    • Portola Packaging, Inc.
    • Steven H. Bietzer
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Tamper-evident closures and container neck therefor
    • Patent number 5,975,320
    • Issue date Nov 2, 1999
    • Portola Packaging, Inc.
    • Steven H. Bietzer
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Non-spill bottle cap
    • Patent number 5,909,827
    • Issue date Jun 8, 1999
    • Portola Packaging, Inc.
    • Steven Bietzer
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Foil lined snap-on, screw-off closure and container neck
    • Patent number 5,887,738
    • Issue date Mar 30, 1999
    • Portola Packaging, Inc.
    • Steven H. Bietzer
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Non-spill bottle cap
    • Patent number 5,868,281
    • Issue date Feb 9, 1999
    • Portola Packaging, Inc.
    • Steven Bietzer
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Foil lined snap-on, screw-off closure and container neck
    • Patent number 5,664,694
    • Issue date Sep 9, 1997
    • Portola Packaging, Inc.
    • Steven H. Bietzer
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Tabs for container closures and container neck
    • Patent number 5,630,520
    • Issue date May 20, 1997
    • Portola Packaging, Inc.
    • Daniel Luch
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL