Patents by Inventor James C. Marra

James C. Marra 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: 6812174
    Abstract: The invention relates to methods of vitrifying waste and for lowering the melting point of glass forming systems by including lithia formers in the glass forming composition in significant amounts, typically from about 0.16 wt % to about 11 wt %, based on the total glass forming oxides. The lithia is typically included as a replacement for alkali oxide glass formers that would normally be present in a particular glass forming system. Replacement can occur on a mole percent or weight percent basis, and typically results in a composition wherein lithia forms about 10 wt % to about 100 wt % of the alkali oxide glass formers present in the composition. The present invention also relates to the high lithia glass compositions formed by these methods.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: November 2, 2004
    Assignee: Westinghouse Savannah River Company
    Inventors: Carol M. Jantzen, John B. Pickett, Connie A. Cicero-Herman, James C. Marra
  • Publication number: 20030203803
    Abstract: The invention relates to methods of vitrifying waste and for lowering the melting point of glass forming systems by including lithia formers in the glass forming composition in significant amounts, typically from about 0.16 wt % to about 11 wt %, based on the total glass forming oxides. The lithia is typically included as a replacement for alkali oxide glass formers that would normally be present in a particular glass forming system. Replacement can occur on a mole percent or weight percent basis, and typically results in a composition wherein lithia forms about 10 wt % to about 100 wt % of the alkali oxide glass formers present in the composition. The present invention also relates to the high lithia glass compositions formed by these methods.
    Type: Application
    Filed: May 19, 2003
    Publication date: October 30, 2003
    Inventors: Carol M. Jantzen, John B. Pickett, Connie A. Cicero-Herman, James C. Marra
  • Patent number: 6630419
    Abstract: The invention relates to methods of vitrifying waste and for lowering the melting point of glass forming systems by including lithia formers in the glass forming composition in significant amounts, typically from about 0.16 wt % to about 11 wt %, based on the total glass forming oxides. The lithia is typically included as a replacement for alkali oxide glass formers that would normally be present in a particular glass forming system. Replacement can occur on a mole percent or weight percent basis, and typically results in a composition wherein lithia forms about 10 wt % to about 100 wt % of the alkali oxide glass formers present in the composition. The present invention also relates to the high lithia glass compositions formed by these methods.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: October 7, 2003
    Assignee: Westinghouse Savannah River Company, LLC
    Inventors: Carol M. Jantzen, John B. Pickett, Connie A. Cicero-Herman, James C. Marra
  • Patent number: 6624103
    Abstract: The invention relates to methods of vitrifying waste and for lowering the melting point of glass forming systems by including lithia formers in the glass forming composition in significant amounts, typically from about 0.16 wt % to about 11 wt %, based on the total glass forming oxides. The lithia is typically included as a replacement for alkali oxide glass formers that would normally be present in a particular glass forming system. Replacement can occur on a mole percent or weight percent basis, and typically results in a composition wherein lithia forms about 10 wt % to about 100 wt % of the alkali oxide glass formers present in the composition. The present invention also relates to the high lithia glass compositions formed by these methods.
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: September 23, 2003
    Assignee: Westinghouse Savannah River Company, LLC
    Inventors: Carol M. Jantzen, John B. Pickett, Connie A. Cicero-Herman, James C. Marra
  • Publication number: 20020177516
    Abstract: The invention relates to methods of vitrifying waste and for lowering the melting point of glass forming systems by including lithia formers in the glass forming composition in significant amounts, typically from about 0.16 wt % to about 11 wt %, based on the total glass forming oxides. The lithia is typically included as a replacement for alkali oxide glass formers that would normally be present in a particular glass forming system. Replacement can occur on a mole percent or weight percent basis, and typically results in a composition wherein lithia forms about 10 wt % to about 100 wt % of the alkali oxide glass formers present in the composition. The present invention also relates to the high lithia glass compositions formed by these methods.
    Type: Application
    Filed: March 28, 2002
    Publication date: November 28, 2002
    Inventors: Carol M. Jantzen, John B. Pickett, Connie A. Cicero-Herman, James C. Marra
  • Publication number: 20010029753
    Abstract: The invention relates to methods of vitrifying waste and for lowering the melting point of glass forming systems by including lithia formers in the glass forming composition in significant amounts, typically from about 0.16 wt % to about 11 wt %, based on the total glass forming oxides. The lithia is typically included as a replacement for alkali oxide glass formers that would normally be present in a particular glass forming system. Replacement can occur on a mole percent or weight percent basis, and typically results in a composition wherein lithia forms about 10 wt % to about 100 wt % of the alkali oxide glass formers present in the composition. The present invention also relates to the high lithia glass compositions formed by these methods.
    Type: Application
    Filed: May 8, 2001
    Publication date: October 18, 2001
    Inventors: Carol M. Jantzen, John B. Pickett, Connie A. Cicero-Herman, James C. Marra
  • Patent number: 6258994
    Abstract: The invention relates to methods of vitrifying waste and for lowering the melting point of glass forming systems by including lithia formers in the glass forming composition in significant amounts, typically from about 0.16 wt % to about 11 wt %, based on the total glass forming oxides. The lithia is typically included as a replacement for alkali oxide glass formers that would normally be present in a particular glass forming system. Replacement can occur on a mole percent or weight percent basis, and typically results in a composition wherein lithia forms about 10 wt % to about 100 wt % of the alkali oxide glass formers present in the composition. The present invention also relates to the high lithia glass compositions formed by these methods.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: July 10, 2001
    Assignee: Westinghouse Savannah River Company
    Inventors: Carol M. Jantzen, John B. Pickett, Connie A. Cicero-Herman, James C. Marra
  • Patent number: 6145343
    Abstract: The invention relates to methods of vitrifying waste and for lowering the melting point of glass forming systems by including lithia formers in the glass forming composition in significant amounts, typically from about 0.16 wt % to about 11 wt %, based on the total glass forming oxides. The lithia is typically included as a replacement for alkali oxide glass formers that would normally be present in a particular glass forming system. Replacement can occur on a mole percent or weight percent basis, and typically results in a composition wherein lithia forms about 10 wt % to about 100 wt % of the alkali oxide glass formers present in the composition. The present invention also relates to the high lithia glass compositions formed by these methods.
    Type: Grant
    Filed: May 2, 1998
    Date of Patent: November 14, 2000
    Assignee: Westinghouse Savannah River Company
    Inventors: Carol M. Jantzen, John B. Pickett, Connie A. Cicero-Herman, James C. Marra