Patents by Inventor Thorsteinn Loftsson

Thorsteinn Loftsson 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).

  • Percutaneous penetration enhancer of oleic acid and 2-ethyl-1, 3-hexanediol
    Patent number: 4764381
    Abstract: Pharmaceutical preparations comprised of a pharmaceutically active ingredient and a carrier which comprises a percutaneous penetration enhancer comprised of 2-ethyl-1, 3-hexanediol alone or in combination with oleic acid is disclosed. The 2-ethyl-1, 3-hexanediol may be present in an amount in the range of about 50% to 100% based on the weight of the carrier. The oleic acid may be used in combination with 2-ethyl-1, 3-hexanediol in an amount of about 1 to 40% based on the weight of the carrier to provide a synergistic effect with respect to percutaneous penetration enhancement. The compound 2-ethyl-1, 3-hexanediol as used alone and/or in combination with the oleic acid has been found to significantly enhance the delivery of a drug, to a patient, from a transdermal delivery system.
    Type: Grant
    Filed: December 6, 1985
    Date of Patent: August 16, 1988
    Assignee: Key Pharmaceuticals, Inc.
    Inventors: Nicholas Bodor, Thorsteinn Loftsson