Patents by Inventor George Mraovich

George Mraovich 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).

  • Reclamation of coking wastes
    Patent number: 4264453
    Abstract: Waste products derived from coking coal, such as coal tar decanter wastes and wash oil muck, are processed to recover an oil fraction and a granular coke breeze residue. The wastes are mixed with a diluent oil, preferably having a saponification number of about 100 or more, are subjected to agitation and mixing and are thereafter filtered to produce a granular, coke breeze cake and a filtrate comprising water and oil which separate easily by decantation.
    Type: Grant
    Filed: January 10, 1980
    Date of Patent: April 28, 1981
    Assignee: Pori International, Inc.
    Inventor: George Mraovich