Patents by Inventor Richard Markovic

Richard Markovic 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).

  • Methods of adjusting glass melting and forming temperatures without substantially changing bending and annealing temperatures and glass articles produced thereby
    Patent number: 6878652
    Abstract: A method is provided for adjusting, e.g., lowering, the melting and/or forming temperatures of a glass composition without substantially changing the bending and annealing temperatures of the glass composition. The method includes increasing the amount of CaO and decreasing the amount of MgO in the glass composition by the same or about the same amount.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: April 12, 2005
    Assignee: PPG Industries Ohio, Inc.
    Inventors: George A. Pecoraro, Larry J. Shelestak, Richard Markovic
  • Methods of adjusting temperatures of glass characteristics and glass articles produced thereby
    Patent number: 6797658
    Abstract: A method is provided for adjusting, e.g., lowering, the melting and/or forming and/or liquidus temperatures of a glass composition which can be accomplished without substantially changing the bending and annealing temperatures of the glass composition. The method includes decreasing the amount of MgO in the glass composition and increasing the amount of two or more or all of CaO, R2O (Na2O and K2O), Al2O3 and SiO2 by the same or about the same amount.
    Type: Grant
    Filed: October 8, 2001
    Date of Patent: September 28, 2004
    Assignee: PPG Industries Ohio, Inc.
    Inventors: George A. Pecoraro, Jerry C. Ratliff, Richard Markovic
  • Methods of adjusting temperatures of glass characteristics and glass articles produced thereby
    Publication number: 20030054938
    Abstract: A method is provided for adjusting, e.g., lowering, the melting and/or forming and/or liquidus temperatures of a glass composition which can be accomplished without substantially changing the bending and annealing temperatures of the glass composition. The method includes decreasing the amount of MgO in the glass composition and increasing the amount of two or more or all of CaO, R2O (Na2O and K2O), Al2O3 and SiO2 by the same or about the same amount.
    Type: Application
    Filed: October 8, 2001
    Publication date: March 20, 2003
    Inventors: George A. Pecoraro, Jerry C. Ratliff, Richard Markovic
  • Methods of adjusting glass melting and forming temperatures without substantially changing bending and annealing temperatures and glass articles produced thereby
    Publication number: 20020169062
    Abstract: A method is provided for adjusting, e.g., lowering, the melting and/or forming temperatures of a glass composition without substantially changing the bending and annealing temperatures of the glass composition. The method includes increasing the amount of CaO and decreasing the amount of MgO in the glass composition by the same or about the same amount.
    Type: Application
    Filed: February 9, 2001
    Publication date: November 14, 2002
    Inventors: George A. Pecoraro, Larry J. Shelestak, Richard Markovic