Patents by Inventor John Robert Larry

John Robert Larry 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).

  • Resistor compositions
    Patent number: 4101708
    Abstract: Resistor compositions of inorganic powders dispersed in an inert vehicle, for making film resistors on dielectric substrates. The powders comprise certain proportions of RuO.sub.2, PbO-containing glass, Nb.sub.2 O.sub.5 and, optionally, CaF.sub.2. Also sintered resistors thereof adherent to such substrates.
    Type: Grant
    Filed: March 25, 1977
    Date of Patent: July 18, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: John Robert Larry
  • High-adhesion conductors
    Patent number: 3944696
    Abstract: Glass frits for producing high-adhesion silver conductor patterns on ceramic substrates, useful in electronic circuitry. Metallizations of such frits. Conductors produced therewith.
    Type: Grant
    Filed: February 18, 1975
    Date of Patent: March 16, 1976
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: John Robert Larry