Patents Examined by Mike Pepitone
  • High refractive index ophthalmic device materials
    Patent number: 7790825
    Abstract: High refractive index copolymers suitable for use in ophthalmic devices are disclosed. The copolymers comprise a single aryl hydrophobic monomer as a device forming monomer. In addition, the copolymers comprise a non-polymerizable block copolymer surfactant. The copolymers have a reduced tendency to form glistenings when stored in water at physiological temperatures.
    Type: Grant
    Filed: May 5, 2009
    Date of Patent: September 7, 2010
    Assignee: Alcon, Inc.
    Inventors: Chance Lehman, Charles Freeman