Patents by Inventor Geoffrey C. Callahan

Geoffrey C. Callahan 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).

  • Electric Fence Energizer Systems
    Publication number: 20140264217
    Abstract: An electric fence energizer system includes a main electrical energizer to supply a main voltage to the system and a remote electrical energizer to supply a supplemental voltage to the system.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: Agratronix LLC
    Inventors: Geoffrey C. Callahan, Trent A. McElhaney