Patents Assigned to Barnes-Hind, Inc.
  • Hydrophilic polymers and contact lenses made therefrom
    Patent number: 4536554
    Abstract: An interpenetrating network polymer is obtained by mixing hydrophilic monomer vinyl pyrrolidone and hydrophobic monomer (5-alkylene-m-dioxanyl) acrylic ester in the presence of at least two crosslinking agents and, optionally, hydroxyalkyl acrylic ester and catalysts and causing polymerization to occur. Contact lenses made from the polymer have high tensile strength and can absorb a high degree of water.
    Type: Grant
    Filed: February 22, 1984
    Date of Patent: August 20, 1985
    Assignee: Barnes-Hind, Inc.
    Inventors: Drahoslav Lim, Chidambar L. Kulkarni, Dennis A. Repella
  • Contact lens heating device
    Patent number: D281812
    Type: Grant
    Filed: May 20, 1983
    Date of Patent: December 17, 1985
    Assignee: Barnes-Hind, Inc.
    Inventors: Richard M. Franczak, Joseph N. Casale