Patents by Inventor R. Gregg Harris

R. Gregg Harris 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).

  • Aqueous antimicrobial opthalmic solutions comprised of quaternary ammonium compound, citric acid, citrate and sodium chloride
    Patent number: 5037647
    Abstract: Hypotonic contact lens care compositions containing a quaternary ammonium antimicrobial agent (e.g. Polyquad.RTM.) and an anionic complexing agent (e.g. citrate) are disclosed. The compositions are useful in the disinfection of hydrophilic contact lenses, particularly Group IV lenses, and in the preservation of products for treating such lenses. Methods for use of the compositions for disinfecting and preserving are also disclosed.
    Type: Grant
    Filed: September 15, 1988
    Date of Patent: August 6, 1991
    Assignee: Alcon Laboratories, Inc.
    Inventors: Masood A. Chowhan, Danny O. Helton, R. Gregg Harris, Connie L. Luthy