Patents by Inventor Roberta L. Johnson

Roberta L. Johnson 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).

  • Insulated shipping container
    Patent number: 5201868
    Abstract: Insulation material is configured to provide improved insulating properties in a shipping container. A first sheet of insulation material is placed along the bottom of a container under the contents of the container. A second sheet of insulation material is configured to have an inverted U-shape and is placed over a bottom half of the container. A top half of the container is then placed over the bottom half such that the legs of the inverted U-shaped material are between the overlapping sides of top and bottom of the container and the middle portion of the U-shaped material is between the top of the container and the contents within the container.
    Type: Grant
    Filed: January 22, 1991
    Date of Patent: April 13, 1993
    Assignee: Rock-Tenn Company
    Inventor: Roberta L. Johnson