Patents by Inventor Ellen R. Rusk

Ellen R. Rusk 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).

  • Exercise spring
    Patent number: D350172
    Type: Grant
    Filed: October 14, 1992
    Date of Patent: August 30, 1994
    Inventor: Ellen R. Rusk
  • Exercise spring
    Patent number: D362703
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: September 26, 1995
    Inventor: Ellen R. Rusk