Patents by Inventor Steven Alvin Tietjie

Steven Alvin Tietjie 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).

  • Transparent glass-ceramic articles, glass-ceramic precursor glasses and methods for forming the same
    Patent number: 9359243
    Abstract: Embodiments of glass ceramic articles and precursor glasses are disclosed. In one or more embodiments, the glass-ceramic articles are transparent and include a nepheline phase and a phosphate phase. The glass-ceramic articles are colorless and exhibit a transmittance of about 70% or greater across the visible spectrum. The glass-ceramic articles may optionally include a lithium aluminosilicate phase. The crystals of the glass-ceramic articles may have a major cross-section of about 100 nm or less.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: June 7, 2016
    Assignee: CORNING INCORPORATED
    Inventors: George Halsey Beall, Charlene Marie Smith, Steven Alvin Tietjie
  • TRANSPARENT GLASS-CERAMIC ARTICLES, GLASS-CERAMIC PRECURSOR GLASSES AND METHODS FOR FORMING THE SAME
    Publication number: 20150329413
    Abstract: Embodiments of glass ceramic articles and precursor glasses are disclosed. In one or more embodiments, the glass-ceramic articles are transparent and include a nepheline phase and a phosphate phase. The glass-ceramic articles are colorless and exhibit a transmittance of about 70% or greater across the visible spectrum. The glass-ceramic articles may optionally include a lithium aluminosilicate phase. The crystals of the glass-ceramic articles may have a major cross-section of about 100 nm or less.
    Type: Application
    Filed: May 8, 2015
    Publication date: November 19, 2015
    Inventors: George Halsey Beall, Charlene Marie Smith, Steven Alvin Tietjie