Patents by Inventor Edward J. Stofka

Edward J. Stofka 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: 4361751
    Abstract: An electroconductive laminated window having an electroconductive coating applied to one interior substrate surface with a pair of bus bars electrically connecting a source of electrical potential thereto. The bus bars include an electroconductive layer having volume resistivity less than about 10.sup.-2 ohm-cm interposed between and conformable to the surface configurations of the electroconductive coating and a flexible metallic current carrying member. The metallic current carrying member is preferably a mesh of thin copper foil which is substantially bendable in its own plane, and the electroconductive layer is preferably a metallic layer substantially free of non-metallic components, consisting of a mixture of finely divided electroconductive particles and finely divided metal alloy particles having a fusion temperature between about 70.degree. C. and about 150.degree. C.
    Type: Grant
    Filed: November 13, 1981
    Date of Patent: November 30, 1982
    Assignee: PPG Industries, Inc.
    Inventors: Russell C. Criss, Edward J. Stofka
  • Patent number: 4323726
    Abstract: An electroconductive laminated window having an electroconductive coating applied to one interior substrate surface with a pair of bus bars electrically connecting a source of electrical potential thereto. The bus bars include an electroconductive layer having volume resistivity less than about 10.sup.-2 ohm-cm interposed between and conformable to the surface configurations of the electroconductive coating and a flexible metallic current carrying member. The metallic current carrying member is preferably a mesh of thin copper foil which is substantially bendable in its own plane, and the electroconductive layer is preferably a metallic layer substantially free of non-metallic components, consisting of a mixture of finely divided electroconductive particles and finely divided metal alloy particles having a fusion temperature between about 70.degree. C. and about 150.degree. C.
    Type: Grant
    Filed: July 24, 1980
    Date of Patent: April 6, 1982
    Assignee: PPG Industries, Inc.
    Inventors: Russell C. Criss, Edward J. Stofka