Patents by Inventor John Edward Cartwright

John Edward Cartwright 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).

  • Refractory heat-insulating materials
    Patent number: 4041199
    Abstract: Refractory heat insulating materials consist of 45-75% by weight refractory aluminosilicate fiber, 2-16% by weight a binding agent consisting of starch and colloidal silica, and 1-20% by weight particulate aluminum, magnesium and/or silicon.
    Type: Grant
    Filed: December 4, 1975
    Date of Patent: August 9, 1977
    Assignee: Foseco International Limited
    Inventor: John Edward Cartwright