Patents by Inventor Delena Lucinda Justice Duffy

Delena Lucinda Justice Duffy 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: 10710928
    Abstract: A method of making an antimicrobial glass article that includes the steps: submersing the article in a strengthening bath to exchange a portion of ion-exchangeable metal ions in the glass article with a portion of ion-exchanging metal ions in the strengthening bath to form a compressive stress layer extending from the first surface to a diffusion depth in the article; removing a portion of the compressive stress layer from the first surface of the article to a first depth above the diffusion depth in the article to define a new first surface and a remaining compressive stress layer; and submersing the article in an antimicrobial bath to exchange a portion of the ion-exchangeable and the ion-exchanging metal ions in the compressive stress layer with a portion of the silver metal ions in the antimicrobial bath to impart an antimicrobial property in the article.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: July 14, 2020
    Assignee: CORNING INCORPORATED
    Inventors: Dana Craig Bookbinder, Nicholas Francis Borrelli, Delena Lucinda Justice Duffy, Sumalee Likitvanichkul, Richard Michael Fiacco, Georgiy M Guryanov, Ekaterina Aleksandrovna Kuksenkova, Wageesha Senaratne, Anantha Narayanan Subramanian
  • Publication number: 20200055764
    Abstract: Glass-ceramic articles are manufactured by an ion exchange process that results in glass-based articles having improved stress profiles. A knee may be located at a depth of 3 microns or deeper. A compressive stress at a surface may be 200 MPa or more and at a knee may be 20 MPa or more. A non-sodium oxide may have a non-zero concentration that varies from the first surface to a depth and a depth of compression (DOC) may be located at 0.10·t, or even at 0.17·t or deeper. A two-step ion exchange (DIOX) includes, for example, a potassium bath in a first treatment to form a spike in a spike region of the stress profile, followed by a second treatment which includes, for example, a potassium and sodium mixed bath to maintain the spike and form a tail region of the stress profile. The glass-ceramic articles may thereby avoid developing a vitreous surface layer, which facilitates repeatable and reliable measurement of waveguide modes and determination of compressive stress in the surface (CS) and depth of the spike.
    Type: Application
    Filed: August 20, 2019
    Publication date: February 20, 2020
    Inventors: Delena Lucinda Justice Duffy, Constance L. Fieno, Jill Marie Hall, Yuhui Jin, Vitor Marino Schneider
  • Publication number: 20180170803
    Abstract: A method of making an antimicrobial glass article that includes the steps: submersing the article in a strengthening bath to exchange a portion of ion-exchangeable metal ions in the glass article with a portion of ion-exchanging metal ions in the strengthening bath to form a compressive stress layer extending from the first surface to a diffusion depth in the article; removing a portion of the compressive stress layer from the first surface of the article to a first depth above the diffusion depth in the article to define a new first surface and a remaining compressive stress layer; and submersing the article in an antimicrobial bath to exchange a portion of the ion-exchangeable and the ion-exchanging metal ions in the compressive stress layer with a portion of the silver metal ions in the antimicrobial bath to impart an antimicrobial property in the article.
    Type: Application
    Filed: February 15, 2018
    Publication date: June 21, 2018
    Inventors: Dana Craig Bookbinder, Nicholas Francis Borrelli, Delena Lucinda Justice Duffy, Sumalee Likitvanichkul Fagan, Richard Michael Fiacco, Georgiy M. Guryanov, Ekaterina Aleksandrovna Kuksenkova, Wageesha Senaratne, Anantha Narayanan Subramanian
  • Patent number: 9919963
    Abstract: A method of making an antimicrobial glass article that includes the steps: submersing the article in a strengthening bath to exchange a portion of ion-exchangeable metal ions in the glass article with a portion of ion-exchanging metal ions in the strengthening bath to form a compressive stress layer extending from the first surface to a diffusion depth in the article; removing a portion of the compressive stress layer from the first surface of the article to a first depth above the diffusion depth in the article to define a new first surface and a remaining compressive stress layer; and submersing the article in an antimicrobial bath to exchange a portion of the ion-exchangeable and the ion-exchanging metal ions in the compressive stress layer with a portion of the silver metal ions in the antimicrobial bath to impart an antimicrobial property in the article.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: March 20, 2018
    Assignee: CORNING INCORPORATED
    Inventors: Dana Craig Bookbinder, Nicholas Francis Borrelli, Delena Lucinda Justice Duffy, Richard Michael Fiacco, Georgiy M Guryanov, Ekaterina Aleksandrovna Kuksenkova, Sumalee Likitvanichkul, Anantha Narayanan Subramanian, Wageesha Senaratne
  • Publication number: 20150368148
    Abstract: A glass exhibiting non-frangible behavior in a region where substantially higher central tension is possible without reaching frangibility is provided. This region allows greater extension of the depth of compression in which fracture-causing flaws are arrested, without rendering the glass frangible despite the presence of high central tension region in the sample.
    Type: Application
    Filed: June 12, 2015
    Publication date: December 24, 2015
    Inventors: Delena Lucinda Justice Duffy, Rostislav Vatchev Roussev, Vitor Marino Schneider, Kristy Lynn Smith
  • Publication number: 20150225288
    Abstract: A method of making an antimicrobial glass article that includes the steps: submersing the article in a strengthening bath to exchange a portion of ion-exchangeable metal ions in the glass article with a portion of ion-exchanging metal ions in the strengthening bath to form a compressive stress layer extending from the first surface to a diffusion depth in the article; removing a portion of the compressive stress layer from the first surface of the article to a first depth above the diffusion depth in the article to define a new first surface and a remaining compressive stress layer; and submersing the article in an antimicrobial bath to exchange a portion of the ion-exchangeable and the ion-exchanging metal ions in the compressive stress layer with a portion of the silver metal ions in the antimicrobial bath to impart an antimicrobial property in the article.
    Type: Application
    Filed: February 10, 2015
    Publication date: August 13, 2015
    Inventors: Dana Craig Bookbinder, Nicholas Francis Borrelli, Delena Lucinda Justice Duffy, Richard Michael Fiacco, Georgiy M. Guryanov, Ekaterina Aleksandrovna Kuksenkova, Sumalee Likitvanichkul, Anantha Narayanan Subramanian, Wageesha Senaratne