Patents by Inventor Karen M. Lowry

Karen M. Lowry 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).

  • Patent number: 5148311
    Abstract: A transparent, hydrophilic, non-fogging coating is applied to the surface of an object. The coating includes a bilaminar graft formed of two films. The first film, denoted the matrix, adheres to the surface of the object, and contains functional groups capable of chemically reacting with a mucopolysaccharide. The second film, denoted the hydrophil, contains the mucopolysaccharide. A quantity of ethylenedinitrilo-tetrakis-(2-hydroxypropane) is added to the matrix and to the hydrophil. Also added to the hydrophil are dimethyl sulfoxide (1%) and desulfated heparin (0.5%). The result is a permanent, transparent, hydrophilic, non-fogging coating. The coating can be formed on an intra-ocular lens or a contact lens, or on other objects. Also, the coating can be formed on a substrate to which the coating does not adhere permanently. The coating can then be separated from the substrate, stored, and later adhered to another surface.
    Type: Grant
    Filed: June 19, 1991
    Date of Patent: September 15, 1992
    Assignee: Beacon Research, Inc.
    Inventors: Ellington M. Beavers, Karen M. Lowry