using reactive dyes

Patents Grantslast 30 patents

  • Information Patent Grant

    Method for preparing tinted contact lens

    • Patent number 5,938,795
    • Issue date Aug 17, 1999
    • Johnson & Johnson Vision Products, Inc.
    • Frank F. Molock
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Process for tinting contact lens

    • Patent number 5,352,245
    • Issue date Oct 4, 1994
    • Ciba-Geigy Corporation
    • Kai C. Su
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Method for preparing tinted contact lens

    • Patent number 5,292,350
    • Issue date Mar 8, 1994
    • Vistakon, Inc.
    • Frank F. Molock
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Method for tinting a hydrophilic contact lens

    • Patent number 5,266,077
    • Issue date Nov 30, 1993
    • Ciba-Geigy Corporation
    • Richard D. Auten
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Method for tinting a hydrophilic polymer by incorporating a reactiv...

    • Patent number 5,151,106
    • Issue date Sep 29, 1992
    • Allergan, Inc.
    • Debabrata Bhaumik
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...