Patents by Inventor Catherine Louise Cheong

Catherine Louise Cheong has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Wound dressing comprising polyurethane foam
    Patent number: 6326410
    Abstract: A wound dressing has a wound-contact layer formed from a polyurethane foam. The foam comprises one part by weight of the reaction product of an isocyanate-capped prepolymer with water (and optionally other hydroxy-functional compounds), and from 0.03 to 0.3 parts by weight of a natural or synthetic rubber. The isocyanate-capped prepolymer is preferably an isocyanate-capped ethyleneoxy/propyleneoxy copolymer, and the rubber is preferably an acrylic rubber.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: December 4, 2001
    Assignee: Johnson & Johnson Medical, Inc.
    Inventor: Catherine Louise Cheong
  • Wound dressing comprising polyurethane foam
    Patent number: 6019996
    Abstract: A wound dressing has a wound-contact layer formed from a polyurethane foam. The foam comprises one part by weight of the reaction product of an isocyanate-capped prepolymer with water (and optionally other hydroxy-functional compounds), and from 0.03 to 0.3 parts by weight of a natural or synthetic rubber. The isocyanate-capped prepolymer is preferably an isocyanate-capped ethyleneoxy/propyleneoxy copolymer, and the rubber is preferably an acrylic rubber.
    Type: Grant
    Filed: December 10, 1997
    Date of Patent: February 1, 2000
    Assignee: Johnson & Johnson Medical, Inc.
    Inventor: Catherine Louise Cheong