Patents by Inventor Ozgur Gulbiten

Ozgur Gulbiten 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 for ceramming glass with nucleation and growth density and viscosity changes
    Patent number: 11834363
    Abstract: A method for ceramming a glass article to a glass-ceramic includes placing a glass article into a heating apparatus, and heating the glass article to a first hold temperature at a first predetermined heating rate. The glass article is held at the first hold temperature for a first predetermined duration. The viscosity of the glass article is maintained within log viscosity ±1.0 poise during the first predetermined duration. The glass article is then heated from the first hold temperature to a second hold temperature at a second predetermined heating rate. The glass article is held at the second hold temperature for a second duration. A density of the glass article is monitored from the heating of the glass article from the first hold temperature through the second duration, and the second duration is ended when an absolute value of a density rate of change of the glass article is less than or equal to 0.10 (g/cm3)/min.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: December 5, 2023
    Assignee: CORNING INCORPORATED
    Inventors: Carol Ann Click, Indrajit Dutta, Ozgur Gulbiten, Jill Marie Hall, Mathieu Gerard Jacques Hubert, Andrew Peter Kittleson, Rohit Rai, John Robert Saltzer, Jr., Matthew Daniel Trosa, Zheming Zheng
  • METHODS FOR CERAMMING GLASS WITH NUCLEATION AND GROWTH DENSITY AND VISCOSITY CHANGES
    Publication number: 20200017395
    Abstract: A method for ceramming a glass article to a glass-ceramic includes placing a glass article into a heating apparatus, and heating the glass article to a first hold temperature at a first predetermined heating rate. The glass article is held at the first hold temperature for a first predetermined duration. The viscosity of the glass article is maintained within log viscosity ±1.0 poise during the first predetermined duration. The glass article is then heated from the first hold temperature to a second hold temperature at a second predetermined heating rate. The glass article is held at the second hold temperature for a second duration. A density of the glass article is monitored from the heating of the glass article from the first hold temperature through the second duration, and the second duration is ended when an absolute value of a density rate of change of the glass article is less than or equal to 0.10 (g/cm3)/min.
    Type: Application
    Filed: July 15, 2019
    Publication date: January 16, 2020
    Inventors: Carol Ann Click, lndrajit Dutta, Ozgur Gulbiten, Jill Marie Hall, Mathieu Gerard Jacques Hubert, Andrew Peter Kittleson, Rohit Rai, John Robert Saltzer, JR., Matthew Daniel Trosa, Zheming Zheng
  • GLASS-CERAMIC ARTICLES WITH INCREASED RESISTANCE TO FRACTURE AND METHODS FOR MAKING THE SAME
    Publication number: 20200017399
    Abstract: A glass-ceramic article having one or more crystalline phases; a residual glass phase; a compressive stress layer extending from a first surface to a depth of compression (DOC); a maximum central tension greater than 70 MPa; a stored tensile energy greater than 22 J/m2; a fracture toughness greater than 1.0 MPa?m; and a haze less than 0.2.
    Type: Application
    Filed: July 16, 2019
    Publication date: January 16, 2020
    Inventors: Carol Ann Click, Indrajit Dutta, James Howard Edmonston, Michael S. Fischer, Qiang Fu, Ozgur Gulbiten, Jill Marie Hall, Mathieu Gerard Jacques Hubert, Dhananjay Joshi, Andrew Peter Kittleson, Rohit Rai, John Robert Saltzer, JR., Charlene Marie Smith, Matthew Daniel Trosa, Matthew Artus Tuggle, James Clark Walck, JR., Alana Marie Whittier, Zheming Zheng