Patents by Inventor Roy J. Sampson

Roy J. Sampson 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).

  • Transition metal composition
    Patent number: 4892852
    Abstract: A transition metal composition is obtained by reacting the magnesium salt of a cycloalkyl carboxylic acid with a transition metal compound, and optionally a Lewis Base compound. The product may be used to produce an olefin polymerization catalyst by addition of for example an aluminium trialkyl and the resulting catalyst has a high activity and stereospecificity in an olefin polymerization process.
    Type: Grant
    Filed: April 13, 1988
    Date of Patent: January 9, 1990
    Assignee: Imperial Chemical Industries PLC
    Inventors: Roy J. Sampson, John W. Kelland, Frank T. Kiff
  • Hydrocarbon conversion
    Patent number: 4197187
    Abstract: Hydrocarbon hydroconversion, especially hydrocarbon reforming, using catalysts whose supports have been prepared by a sol-gel process. For hydrocarbon reforming, it is preferred that the primary particles used to prepare the porous gel should have been prepared by a vapor phase condensation method, for example flame hydrolysis and that the support should have a narrow pore size distribution. The process produces much less gas by hydrocracking at given aromatics yields than comparative processes using conventional catalysts.
    Type: Grant
    Filed: July 3, 1978
    Date of Patent: April 8, 1980
    Assignee: Imperial Chemical Industries Limited
    Inventors: Michael A. Day, David Jackson, Roy J. Sampson