Patents by Inventor Ronald Echols

Ronald Echols 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).

  • Safety stopper engager
    Patent number: 4704924
    Abstract: A safety stopper engager for use with test tubes to grip and retain a test tube stopper and prevent contamination of the user as the stopper is removed. The safety stopper engager has a resilient outer body with a contoured, concave recess portion and a safety absorbent ring. The safety stopper engager retains the stopper and absorbs test tube content's residue avoiding contamination of the test tube and the user.
    Type: Grant
    Filed: March 24, 1986
    Date of Patent: November 10, 1987
    Inventor: Ronald Echols