Patents by Inventor Edward C. Sumner, IV

Edward C. Sumner, IV 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).

  • Pelletizing coal or coke with starch particles
    Patent number: 5242470
    Abstract: Coal or other fine particles are pelletized by mixing relatively moist particles of them with fine particles of a waste product collected during grain transport and storage and extruding or pelletizing the mixture without extensive heating or steaming.
    Type: Grant
    Filed: August 9, 1991
    Date of Patent: September 7, 1993
    Assignee: Zeigler Coal Holding Company
    Inventors: James A. Salter, James P. Frederick, Edward C. Sumner, IV