Patents by Inventor Stephen W. Smoot

Stephen W. Smoot 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).

  • Method of forming stable images in electron beam writable glass compositions
    Patent number: 5145757
    Abstract: A silicate glass article comprising an amount of SiO.sub.2 effective as a network former and,at least one surface of said article having a substantially continuous silver and hydration content over its area, effective to render said surface darkenable upon exposure to electron beam radiation but substantially not thermoplastic,said article having been substantially darkened by electron beam irradiation over at least a portion of at least one surface thereof,and said article having geometric characteristics suitable for functioning as a photomask reticle, optical disk or similar archival storage medium.
    Type: Grant
    Filed: June 23, 1989
    Date of Patent: September 8, 1992
    Assignee: Schott Glass Technologies, Inc.
    Inventors: Stephen W. Smoot, Joseph S. Hayden
  • Method of forming stable images in electron beam writable glass compositions
    Patent number: 5114813
    Abstract: Silicate glasses are provided which when exposed to a silver ion exchange surface treatment are writable with electron beams. These glasses contain OD agents and do not require elements having 1-4 d-electrons in the atomic state.
    Type: Grant
    Filed: February 8, 1990
    Date of Patent: May 19, 1992
    Assignee: Schott Glass Technologies, Inc.
    Inventors: Stephen W. Smoot, Joseph S. Hayden, Marc Clement, Danuta Grabowski, Eva Holzel, Peter Nass, Martin Heming