Patents by Inventor Marshall K. Muller

Marshall K. Muller 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).

  • Hatch ventilator awning for boats
    Patent number: 4941422
    Abstract: A waterproof fabric awning is tied to the hinges at the back of a boat hatch and suspended forward over the hatch. Flexible ribs form it into the shape of an arch in function but allow it to be rolled up compactly for storage.
    Type: Grant
    Filed: May 25, 1989
    Date of Patent: July 17, 1990
    Inventor: Marshall K. Muller