Patents by Inventor G. Lee Southard

G. Lee Southard 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).

  • Drug delivery devices
    Patent number: 5013553
    Abstract: Drug delivery devices and techniques are described for use in treatment of periodontal disease and the like. The delivery device includes benzo (c) phenanthridine alkaloid in a bioerodable and biocompatible material. The alkaloid is slowly released from the bioerodable material in the oral cavity. The bioerodable material may be polymeric and may be natural or synthetic. The delivery device may be inserted subgingivally (e.g., in a periodontal pocket) where the alkaloid is released slowly over a period of days.
    Type: Grant
    Filed: August 29, 1989
    Date of Patent: May 7, 1991
    Assignee: Vipont Pharmaceutical, Inc.
    Inventors: G. Lee Southard, Ronald J. Harkrader
  • Method for treating periodontal disease
    Patent number: 4683133
    Abstract: A self-administerable method of treating periodontal disease by providing a dilute aqueous solution of a non-toxic benzo-c-phenanthridine salt, pumping the solution through an orifice to provide a pulsating jet stream that is capable of penetrating directly into the periodontal pockets associated with periodontal disease, and applying the jet stream to diseased gingival tissue and into the periodontal pockets.
    Type: Grant
    Filed: August 20, 1985
    Date of Patent: July 28, 1987
    Assignee: Vipont Laboratories, Inc.
    Inventor: G. Lee Southard