Patents Assigned to Opticol Corporation
  • Fiber collagen contact lens
    Patent number: 4268131
    Abstract: Soft contact lenses are made from purified fiber collagen and mixtures of such fiber with purified solubilized collagen.
    Type: Grant
    Filed: April 11, 1979
    Date of Patent: May 19, 1981
    Assignee: Opticol Corporation
    Inventors: Teruo Miyata, Albert L. Rubin, Kurt H. Stenzel, Michael W. Dunn
  • Collagen contact lens
    Patent number: 4264155
    Abstract: Improved soft contact lenses are made from collagen gels to which water-soluble organic polyhydroxy polymers are added, e.g. mucopolysaccharides, polyvinyl alcohols, etc.
    Type: Grant
    Filed: July 9, 1979
    Date of Patent: April 28, 1981
    Assignee: Opticol Corporation
    Inventor: Teruo Miyata
  • Collagen gel contact lens and method of preparation
    Patent number: 4260228
    Abstract: An improved collagen gel soft contact lens is prepared from an aldehyde-crosslinked, lens-shaped collagen gel containing a water-soluble, aliphatic, monomeric, polyhydroxy compound, e.g., glucose.
    Type: Grant
    Filed: January 21, 1980
    Date of Patent: April 7, 1981
    Assignee: Opticol Corporation
    Inventor: Teruo Miyata
  • Collagen soft contact lens
    Patent number: 4223984
    Abstract: Soft contact lenses are made from solubilized, defatted, transparent, cross-linked collagen, and/or chemically-modified collagen.
    Type: Grant
    Filed: April 4, 1979
    Date of Patent: September 23, 1980
    Assignee: Opticol Corporation
    Inventors: Teruo Miyata, Albert L. Rubin, Michael W. Dunn, Kurt H. Stenzel