Patents by Inventor Robert John Lockwood

Robert John Lockwood 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).

  • Energy absorbing polyurethane foams
    Patent number: 5698609
    Abstract: An open-celled polyurethane foam is provided having a density of 1.5 to 5.0 pcf, a G value of 30 to 80 over a static load range of 1.0 to 2.0 psi based on a 2.0 inch thickness and a 24 inch drop height and, an airflow in the range of 0.05 to 0.5 scfm, 25% as compressive strength of 4.
    Type: Grant
    Filed: November 14, 1996
    Date of Patent: December 16, 1997
    Assignee: Imperial Chemical Industries Plc
    Inventors: Robert John Lockwood, Brian Fogg