Patents by Inventor Stephen John Gentry

Stephen John Gentry 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).

  • Catalytic gas detectors
    Patent number: 4111658
    Abstract: A device sensitive to a combustible gas having an exothermic oxidation reaction comprises a catalytic element in the form of a body of material a major proportion of which consists of an aluminosilicate zeolite having a ratio of silicon to aluminum of greater than two and a three-dimensional pore structure; a catalyst metal within the zeolite pores; and heating means for heating the catalyst to temperatures at which it will cause combustion of the gas.
    Type: Grant
    Filed: December 7, 1977
    Date of Patent: September 5, 1978
    Assignee: National Research Development Corporation
    Inventors: Jack Graham Firth, Stephen John Gentry, Alan Jones