Patents by Inventor Dennis R. Graber

Dennis R. Graber 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: 5994249
    Abstract: A soda-lime-silica glass having, at a thickness in the range of 3 mm to 10 mm, a visible light transmittance of 35% to 75%, a total solar radiation transmittance in the range of 20% to 60%, an ultraviolet radiation transmission less than 55%, and a blue color defined by the "CIELAB" system of L=65 to 90, a*=-15 to -4, and b*=-15 to -2. The soda-lime-silica glass composition includes the essential ingredients of about 0.5% to about 0.9% weight percent total iron (as Fe.sub.2 O.sub.3), about 50 ppm to 100 ppm CoO, and about 0.1 to about 2.0 weight percent TiO.sub.2, with a ferrous iron to total iron ratio of about 20% to about 40%.
    Type: Grant
    Filed: July 23, 1998
    Date of Patent: November 30, 1999
    Assignee: Libbey-Owens-Ford Co.
    Inventors: Dennis R. Graber, Paige L. Higby