Patents by Inventor Gerard R. Boury

Gerard R. Boury 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).

  • Decorative enamel for glass-ceramics having low coefficients of thermal expansion
    Patent number: 4532221
    Abstract: This invention is concerned with the preparation of thermally crystallizable enamels suitable for application to glass-ceramics, particularly glass-ceramics having coefficients of thermal expansion less than 15.times.10.sup.-7 /.degree.C. The enamels are capable of being fired to maturity simultaneously with the precursor glass body being crystallized to a glass-ceramic. The enamels consist essentially, expressed in weight percent on the oxide basis, of:SiO.sub.2 : 36-58Al.sub.2 O.sub.3 : 8.5-16CaO: 0.5-10PbO: 27-40K.sub.2 O: 0.
    Type: Grant
    Filed: February 21, 1984
    Date of Patent: July 30, 1985
    Assignee: Corning Glass Works
    Inventors: Pernette R. M. Barlier, Gerard R. Boury, Jean-Pierre Mazeau