Patents by Inventor Ronald L. Litzinger

Ronald L. Litzinger 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).

  • Removal of low melting particles from unground coal liquefaction residue
    Patent number: 4526679
    Abstract: A mixture of low melting particles and high melting particles is heated to a temperature above the melting point of the low melting particles and below the melting point of the high melting particles thereby melting the low melting particles and forming a bond between the low melting particles and the high melting particles which bond is strengthened on cooling, the resulting agglomerate containing the low melting particles being separated from the unbonded high melting particles.
    Type: Grant
    Filed: September 2, 1983
    Date of Patent: July 2, 1985
    Assignee: Texaco Inc.
    Inventor: Ronald L. Litzinger