Patents by Inventor Martha S. Burns

Martha S. Burns 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).

  • Buoyancy device
    Patent number: 5176555
    Abstract: A buoyancy device for individuals engaged in water related activities is disclosed, with the buoyancy device having features useful for individuals engaged in water based exercises such as water based aerobics. The device has a configuration which is that of a somewhat bloated trapezoid symmetrical about its axes.
    Type: Grant
    Filed: October 8, 1991
    Date of Patent: January 5, 1993
    Inventor: Martha S. Burns