Patents by Inventor Keith Douglas Simon

Keith Douglas Simon 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).

  • Contoured asymmetrical mattress
    Patent number: 5671492
    Abstract: A mattress is provided with elevated chest support region and an arm well to reduce sleep disturbance in a person in the prone, sublime or side position. Said mattress is further provided with a firm zone at the foot of the mattress to assist persons transitioning onto and off of the mattress. An adjustable cover for said mattress is provided as is an improved method for packaging said mattress and cover.
    Type: Grant
    Filed: March 14, 1995
    Date of Patent: September 30, 1997
    Inventor: Keith Douglas Simon