Patents by Inventor Charles G. Fritz

Charles G. Fritz 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).

  • Mesh-covered bolus
    Patent number: 4326522
    Abstract: A bolus for administering medicament containing the medicament in a bio-erodible polymer having a shape or size so that it is retained in the rumen for at least two weeks, having a fine mesh completely encasing the bolus, which can contain a heavy metal core to give it weight, or can be in two segments connected by a spring, or a flexible polyurethane band, which changes position after being administered to the animal.
    Type: Grant
    Filed: June 9, 1980
    Date of Patent: April 27, 1982
    Assignee: Pitman-Moore, Inc.
    Inventors: Jorge Guerrero, Alice D. Mellon, Charles G. Fritz, Namassivaya Doddi