Patents by Inventor William Patrick Doyle

William Patrick Doyle 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).

  • Locating apparatus and system
    Patent number: 7527109
    Abstract: Apparatus and methods for locating underground obstructions are disclosed. One embodiment of the present invention comprises an elongate probe with a first and second end and a first internal fluid passageway, a handle disposed on the elongate member, and a tip disposed on an end of the elongate member, wherein the tip comprises a second internal fluid passageway in fluid communication with the first internal passageway, and a flexible hose connection disposed on the elongate member, wherein the connection is disposed between the first end and the second end and the connection is in fluid communication with the first internal passageway.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: May 5, 2009
    Assignee: Doyle & Wachstetter, Inc.
    Inventors: Steven H. Barker, William Patrick Doyle, Charles D. Wachtstetter