Patents by Inventor John E. Creighton

John E. Creighton 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).

  • Patent number: 5300214
    Abstract: Hydroprocessing catalysts which comprise alumina and Group VIB and VIII metal components having a desired pore size/volume distribution and high surface area, i.e. above 330 m.sup.2 /g.
    Type: Grant
    Filed: October 26, 1992
    Date of Patent: April 5, 1994
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: John E. Creighton, Leo Rheaume
  • Patent number: 5192734
    Abstract: Hydroprocessing catalysts which comprise alumina and Group VIB and VIII metal components having a desired pore size/volume distribution and high surface area, i.e. above 330 m.sup.2 /g.
    Type: Grant
    Filed: October 25, 1991
    Date of Patent: March 9, 1993
    Assignee: W. R. Grace & Co.- Conn.
    Inventors: John E. Creighton, Leo Rheaume