Patents by Inventor Robert John Fuller

Robert John Fuller 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).

  • Process for the manufacture of carbon fibers
    Patent number: 3959448
    Abstract: The invention comprises the use of a solution or extract of coal as a carbonaceous material to produce carbon fibers, filaments or films in a process comprising extruding or spinning the carbonaceous material to form a fiber, filament or film, oxidizing the spun or extruded carbonaceous material to stabilize it to further heat treatment, and carbonizing the stabilized carbonaceous material. Solutions or extracts of coal may be made by treating the coal with a high boiling aromatic solvent, for example anthracene oil or phenanthrene, at an elevated temperature, for example 400.degree.C.
    Type: Grant
    Filed: February 4, 1975
    Date of Patent: May 25, 1976
    Assignee: Coal Industry (Patents) Limited
    Inventors: Robert John Fuller, William Redvers Ladner, Ernest Pritchard