Patents by Inventor Kenneth E. Riegel

Kenneth E. Riegel 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).

  • Recovery of metal values from cermet
    Patent number: 7048774
    Abstract: Cermet material obtained from unused inert anodes, used inert anodes and cermet used in the production of inert anodes is beneficiated into a nonferrous metal concentrate composition from which metal values contained in the composition may be readily recovered by using a conventional smelting process. The invention also relates to the use of the composition in a smelting process for the recovery of metal values from the cermet composition of the invention.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: May 23, 2006
    Assignee: World Resources Company
    Inventors: Peter T. Halpin, Ulrich R. Schlegel, Kenneth E. Riegel
  • Recovery of metal values from cermet
    Patent number: 6830605
    Abstract: Cermet material obtained from unused inert anodes, used inert anodes and cermet used in the production of inert anodes is beneficiated into a nonferrous metal concentrate composition from which metal values contained in the composition may be readily recovered by using a conventional smelting process.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: December 14, 2004
    Assignee: World Resources Company
    Inventors: Peter T. Halpin, Ulrich R. Schlegel, Kenneth E. Riegel
  • RECOVERY OF METAL VALUES FROM CERMET
    Publication number: 20040177721
    Abstract: Cermet material obtained from unused inert anodes, used inert anodes and cermet used in the production of inert anodes is beneficiated into a nonferrous metal concentrate composition from which metal values contained in the composition may be readily recovered by using a conventional smelting process. The invention also relates to the use of the composition in a smelting process for the recovery of metal values from the cermet composition of the invention.
    Type: Application
    Filed: March 14, 2003
    Publication date: September 16, 2004
    Applicant: WORLD RESOURCES COMPANY
    Inventors: Peter T. Halpin, Ulrich R. Schlegel, Kenneth E. Riegel
  • Recovery of metal values from cermet
    Publication number: 20040177722
    Abstract: Cermet material obtained from unused inert anodes, used inert anodes and cermet used in the production of inert anodes is beneficiated into a nonferrous metal concentrate composition from which metal values contained in the composition may be readily recovered by using a conventional smelting process. The invention also relates to the use of the composition in a smelting process for the recovery of metal values from the cermet composition of the invention.
    Type: Application
    Filed: February 27, 2004
    Publication date: September 16, 2004
    Applicant: WORLD RESOURCES COMPANY
    Inventors: Peter T. Halpin, Ulrich R. Schlegel, Kenneth E. Riegel