Patents by Inventor Ann-Margret Andersson

Ann-Margret Andersson 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).

  • Antimicrobial lenses, processes to prepare them and methods of their use
    Publication number: 20040150788
    Abstract: This invention relates to antimicrobial lenses containing metals and methods for their production.
    Type: Application
    Filed: November 18, 2003
    Publication date: August 5, 2004
    Inventors: Ann-Margret Andersson, Osman Rathore, Ann-Marie Wong Meyers
  • Antimicrobial lenses displaying extended efficacy, processes to prepare them and methods of their use
    Publication number: 20040151755
    Abstract: This invention relates to antimicrobial ophthalmic devices containing silver releasing compounds and methods for their production. The antimicrobial lenses of the present invention have percent haze of less than about 200% and have a release rate constant, calculated using a first order kinetics equation of up to about 1 days−1 and an initial silver concentration of at least about 10 ppm.
    Type: Application
    Filed: November 18, 2003
    Publication date: August 5, 2004
    Inventors: Osman Rathore, Diana Zanini, Frank Neely, Donald E. Riederer, Douglas Vanderlaan, Ann-Margret Andersson