Patents by Inventor Charles M. Whitten

Charles M. Whitten 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).

  • Patent number: 4372756
    Abstract: Coal is processed first through a moving bed reactor and then through a fixed bed reactor. Hot carbonized coal char is fed from the first stage reactor to the second stage reactor via a lock hopper and gas is taken off from the reactors either in separate streams or in a common stream.
    Type: Grant
    Filed: June 30, 1981
    Date of Patent: February 8, 1983
    Assignee: Mansfield Carbon Products, Inc.
    Inventors: Charles M. Whitten, Robert H. Scott, Vaughn Mansfield
  • Patent number: 3969088
    Abstract: Raw coal is charred in pre- and post-treatment carbonizers, then pulverized, mixed with pitch, briquetted, re-circulated through the pre- and post-treatment carbonizers with succeeding green coal, cooled, and finally separated from the as yet un-briquetted char.
    Type: Grant
    Filed: April 28, 1975
    Date of Patent: July 13, 1976
    Assignee: Peabody Coal Company
    Inventors: Vaughn Mansfield, Charles M. Whitten