Patents by Inventor John T. St. Ledger

John T. St. Ledger 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).

  • Publication number: 20120262301
    Abstract: An object locating device containing a transmitter, receiver, and adapted battery. The receiver and adapted battery are sized to correspond to a standard sized battery and fit into the battery compartment of the object to be located. The transmitter, when activated, emits a radio frequency that is received by the receiver. Upon receipt of this signal, receiver emits an audible tone allowing the user to locate a missing object. The receiver includes a power source, circuit board, and voltage bridge. Adapted battery contains an increased voltage to compensate for the loss of power from the receiver, wherein a user will remove two of the existing batteries from the device and replace them with adapted battery and receiver.
    Type: Application
    Filed: April 18, 2011
    Publication date: October 18, 2012
    Inventors: Raymond F. Davidson, John T. St. Ledger