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Hanns J. Kristen

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  • San Anselmo, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Volumetric vacuum control
    • Patent number 6,256,968
    • Issue date Jul 10, 2001
    • Tilia International
    • Hanns J. Kristen
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Plastic bag sealing apparatus with an ultracapacitor discharging po...
    • Patent number 6,058,998
    • Issue date May 9, 2000
    • Tilia International, Inc.
    • Hanns J. Kristen
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Hand held vacuum device
    • Patent number 5,765,608
    • Issue date Jun 16, 1998
    • Tilia International
    • Hanns J. Kristen
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Exhaust flow rate vacuum sensor
    • Patent number 5,655,357
    • Issue date Aug 12, 1997
    • Tilia International, Inc.
    • Hanns J. Kristen
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Apparatus for vacuum sealing plastic bags
    • Patent number 4,941,310
    • Issue date Jul 17, 1990
    • Tillia Aktiengesellschaft
    • Hanns J. Kristen
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL