Patents by Inventor Leland L. Clark

Leland L. Clark 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).

  • Wart treatment with phosphonoacetic acid or derivatives thereof
    Patent number: 4016264
    Abstract: A method and composition of matter for reducing warts with an active compound including phosphonoacetic acid, methylphosphonic acid and/or at least one of the physiologically acceptable sodium, potassium and calcium derivatives thereof and, if desired, a tissue penetrating and/or tissue removing agent. The method includes contacting a wart with the composition of this invention until the wart has been suitably reduced.
    Type: Grant
    Filed: July 14, 1975
    Date of Patent: April 5, 1977
    Assignee: The University of Utah
    Inventor: Leland L. Clark