Patents Assigned to L. S. van Landingham, Jr.
  • Combatting internal parasites in warm blooded animals
    Patent number: 4846788
    Abstract: Dyes which, in the presence of molecular oxygen, promote the formation of cytotoxic oxygen are used to combat internal parasites in warm blooded animals. Internal parasites having the dye incorporated therein are exposed to electromagnetic radiation to initiate one or more lethal oxidative reactions. The photosensitized parasites may be in the infective stage thereby breaking the life cycle. This reduces or prevents reinfection and the need for traditional anthelmintics.
    Type: Grant
    Filed: May 19, 1988
    Date of Patent: July 11, 1989
    Assignee: L. S. van Landingham, Jr.
    Inventors: James R. Heitz, James A. Hawkins
  • Combatting internal parasites in warm blooded animals
    Patent number: 4846789
    Abstract: Dyes which, in the presence of molecular oxygen, promote the formation of cytotoxic oxygen are used to combat internal parasites in warm blooded animals. Internal parasites having the dye incorporated therein are exposed to electromagnetic radiation to initiate one or more lethal oxidative reactions. The photosensitized parasites may be in the infective stage thereby breaking the life cycle. This reduces or prevents reinfection and the need for traditional anthelmintics.
    Type: Grant
    Filed: July 19, 1982
    Date of Patent: July 11, 1989
    Assignee: L. S. Van Landingham, Jr.
    Inventors: James R. Heitz, James A. Hawkins