Patents by Inventor David M. Rees

David M. Rees 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).

  • Process for dispersal and redispersal of platinum group metals comprising sulphiding in a stream of inert gas
    Patent number: 4192771
    Abstract: A process for the redispersal or dispersal of a platinum group metal in a catalyst comprising an oxidized platinum group metal component and a refactory inorganic support comprises the steps of treating the oxidized catalyst with a stream of inert gas containing a sulphiding agent and reducing the sulphided catalyst in a stream of hydrogen-containing gas at a temperature in the range 200.degree. to 600.degree. C. to give a maximum catalyst temperature of 550.degree. C.
    Type: Grant
    Filed: May 1, 1978
    Date of Patent: March 11, 1980
    Assignee: The British Petroleum Company Limited
    Inventors: Bernard W. Burbidge, David M. Rees