using vat or sulfur dyes

Patents Grantslast 30 patents

  • Information Patent Grant

    Method for the partial coloring of plastic parts

    • Patent number 10,662,581
    • Issue date May 26, 2020
    • Covestro Deutschland AG
    • Georgios Tziovaras
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    Combined warp sizing and fixing agent and new method for fixing sul...

    • Patent number 9,109,134
    • Issue date Aug 18, 2015
    • Clariant Finance (BVI) Limited
    • Richard Schuette
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Multiple step dyeing textile with concentrated dye systems

    • Patent number 8,167,958
    • Issue date May 1, 2012
    • DyStar Colours Deutschland GmbH
    • Christian Meyer
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    Process for preparing soft tinted lenses

    • Patent number 6,048,371
    • Issue date Apr 11, 2000
    • Hydron, Ltd.
    • Wade Marcel Tipton
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Tinting hydrogel materials with vat dyes

    • Patent number 5,534,038
    • Issue date Jul 9, 1996
    • Pilkington Barnes Hind, Inc.
    • John M. Evans
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    Opaque tinting process for contact lens

    • Patent number 4,634,449
    • Issue date Jan 6, 1987
    • International Hydron Corporation
    • Evan J. Jenkins
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    3927973

    • Patent number 3,927,973
    • Issue date Dec 23, 1975
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...

Patents Applicationslast 30 patents