Patents by Inventor John James McCarroll

John James McCarroll 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).

  • Platinum group metal catalyst
    Patent number: 4122040
    Abstract: Hydrogen transfer catalyst comprises (a) as support a graphite containing carbon having (1) a basal plane surface area of at least 100 m.sup.2 /g, (2) a ratio of BET surface area to basal plane surface area of not more than 5:1 and (3) a ratio of basal plane surface area to edge surface area of at least 5:1 and (b) as active component, 0.01 to 10% by weight, of the total weight of catalyst of a platinum group metal disposed thereon. The catalyst is particularly suitable for reforming.
    Type: Grant
    Filed: September 22, 1976
    Date of Patent: October 24, 1978
    Assignee: The British Petroleum Company Limited
    Inventors: John James McCarroll, John Trevor Kent Clark, Stephen Robert Tennison
  • Method of applying a layer of silica on a substrate
    Patent number: 4099990
    Abstract: Substrate surfaces are rendered resistant to coking by vaporizing an alkoxysilane in contact with the surface to form a protective layer of silica thereon.
    Type: Grant
    Filed: March 23, 1976
    Date of Patent: July 11, 1978
    Assignee: The British Petroleum Company Limited
    Inventors: David Emmerson Brown, John Trevor Kent Clark, John James McCarroll, Malcolm Leslie Sims
  • Method for preparing graphite containing carbon
    Patent number: 4055628
    Abstract: Graphite-containing carbon is prepared by subjecting carbon to the steps of (1) an initial heat treatment in an inert atmosphere, (2) an oxidation stage and (3) a further heat treatment in an inert atmosphere.
    Type: Grant
    Filed: September 22, 1976
    Date of Patent: October 25, 1977
    Assignee: The British Petroleum Company Limited
    Inventors: John James McCarroll, John Trevor Kent Clark, Stephen Robert Tennison