Patents by Inventor John Frederick Hall

John Frederick Hall 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).

  • Residential emergency activated locating device (RLD)
    Publication number: 20110304473
    Abstract: An emergency location apparatus is described including a power source, a control panel for one of activating and de-activating a high intensity light and an activation switch. Also described is a method for operating an emergency location apparatus including receiving a signal, determining if the received signal is an activation signal and one of activating a high intensity light and de-activating said high intensity light.
    Type: Application
    Filed: June 14, 2010
    Publication date: December 15, 2011
    Inventors: J. Antonio Ayala, John Frederick Hall