Patents by Inventor Bo H. Nygren

Bo H. Nygren 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).

  • Process for providing articles with a biocompatible surface layer
    Patent number: 4673584
    Abstract: A process for providing a surface of glass, silicon, aluminum or silicone rubber of an article useful within medicine with a bicompatible surface layer. Said surface is reacted (after oxidation when required) with a silane containing at least one epoxy group and the surface thus treated is then reacted with a polysaccharide containing at least one hydroxyl group. The invention also relates to an article exhibiting a biocompatible surface layer of a polysaccharide containing at least one hydroxyl group, which polysaccharide is covalently bound to a surface of glass, silicon, aluminum or silicone rubber of the article by means of a silane.
    Type: Grant
    Filed: March 5, 1986
    Date of Patent: June 16, 1987
    Assignee: Astra Meditec AB
    Inventors: Bo H. Nygren, Johan E. Stenberg
  • Articles exhibiting a biocompatible surface layer
    Patent number: 4588624
    Abstract: A process for providing a surface of glass, silicon, aluminum or silicone rubber of an article useful within medicine with a biocompatible surface layer. Said surface is reacted (after oxidation when required) with a silane containing at least one epoxy group and the surface thus treated is then reacted with a polysaccharide containing at least one hydroxyl group. The invention also relates to an article exhibiting a biocompatible surface layer of a polysaccharide containing at least one hydroxyl group, which polysaccharide is covalently bound to a surface of glass, silicon, aluminum or silicone rubber of the article by means of a silane.
    Type: Grant
    Filed: January 13, 1986
    Date of Patent: May 13, 1986
    Assignee: Astra Meditec AB
    Inventors: Bo H. Nygren, Johan E. Stenberg