Patents by Inventor Graham Keith Hilder

Graham Keith Hilder 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).

  • Water treatment of hydrodesulfurization catalyst to improve its microporosity
    Patent number: 4035261
    Abstract: Desulphurization catalysts particularly CoMo are improved by treating with water free from added salts.The water washing improves the pore size distribution of the catalyst.
    Type: Grant
    Filed: November 12, 1975
    Date of Patent: July 12, 1977
    Assignee: The British Petroleum Company Limited
    Inventors: John David Hargrove, Graham Keith Hilder