Patents by Inventor Marshall G. Walls

Marshall G. Walls 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).

  • Patent number: 9988826
    Abstract: An animal door system includes a door forming a body having: a front surface; a back surface; a first side; and a second side. The system further includes a plurality of hinges secured to the second side; a handle extending through a thickness of the body and configured to manipulate a latch extending through the first side of the body; a latch blocker secured over the latch and rigidly attached to the first side of the body; an animal interface rigidly secured to the first side of the body and configured to protrude relative to the front surface of the body; and an adjustable door return device secured to the back surface of the body of the door, the adjustable door return device is configured to return the door to a closed position.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: June 5, 2018
    Inventor: Marshall G. Walls
  • Publication number: 20100064235
    Abstract: A system and method for providing an interactive maintenance support GUI. The system provides a computing and related database device containing maintenance and support information related to a machine. The computing device provides a GUI for user interaction. The GUI has at least two areas for display of machine-related information, with one area providing greater information detail than the other. User movement of the GUI cursor with respect to area hot-spots causes the information to dynamically vary.
    Type: Application
    Filed: August 26, 2009
    Publication date: March 11, 2010
    Inventor: Marshall G. Walls