Patents by Inventor Brian G. Bagnall

Brian G. Bagnall 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).

  • Delayed action assembly
    Patent number: 4564363
    Abstract: A device for effecting the delayed release of an active ingredient comprises a container and, within, a dispersible unit of ingredient, a removable closure and a electrical control circuit for removal of said closure at a designated time to release the active ingredient. Several assemblies are combined to control the administration of veterinary medicaments to ruminant animals as a specific application of the invention.
    Type: Grant
    Filed: July 13, 1983
    Date of Patent: January 14, 1986
    Assignee: SmithKline Beckman Corporation
    Inventors: Brian G. Bagnall, Robert J. Gyurik