Patents by Inventor Philip Cordrey

Philip Cordrey 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).

  • Restoring agent for soft contact lenses
    Patent number: 4152283
    Abstract: Soft contact lenses, which have become deteriorated as a result of prolonged use, are treated with an aqueous solution of ethylene oxide/propylene oxide block copolymer and ethylenediaminetetraacetic acid or water-soluble salt thereof.
    Type: Grant
    Filed: July 19, 1977
    Date of Patent: May 1, 1979
    Assignee: Sauflon International, Inc.
    Inventors: Philip Cordrey, Satindar N. Ganju