Patents by Inventor Ronald L. Supplee

Ronald L. Supplee 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).

  • Adjustable air cushion maternity mattress
    Patent number: 5425147
    Abstract: A maternity mattress having three concentric inflatable cells where the cells are each independently adjustable and may be inflated or deflated by turning a selective valve and pressing the appropriate button on a pump switch.
    Type: Grant
    Filed: July 29, 1994
    Date of Patent: June 20, 1995
    Inventors: Ronald L. Supplee, Annalee Supplee