Patents by Inventor Geoffrey Charles Stevens

Geoffrey Charles Stevens 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).

  • Method for preparing desulfurization catalyst
    Patent number: 4062811
    Abstract: Desulfurization catalyst comprising an iron group metal and a Group VIB metal is modified by refluxing with an aqueous solution of an alkali or alkaline earth metal, or a transition metal. The pore size distribution of the catalyst is improved.
    Type: Grant
    Filed: May 26, 1976
    Date of Patent: December 13, 1977
    Assignee: The British Petroleum Company Limited
    Inventors: John David Hargrove, Geoffrey Charles Stevens