Patents by Inventor Mark Laurence Doyle

Mark Laurence Doyle 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).

  • Gas separation devices
    Patent number: 6350297
    Abstract: A gas separation device for the removal of carbon oxides from a hydrogen-rich gas stream in the form of a composite comprising a hydrogen diffusion membrane and a methanation catalyst. The hydrogen diffusion membrane may be applied to the upstream surface of a porous or microporous support and the methanation catalyst may be applied to the downstream surface of the porous or microporous support.
    Type: Grant
    Filed: September 1, 1999
    Date of Patent: February 26, 2002
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Mark Laurence Doyle, Neil Edwards
  • Hydrogen storage materials
    Patent number: 6165643
    Abstract: A hydrogen storage material comprising hydride-forming metallic particles and an interface activation composition, wherein the surface of at least some of the hydride-forming metallic particles have a discontinuous or partial deposit of said interface activation composition, such as one or more platinum group metals, is disclosed. The hydrogen storage material demonstrates improved kinetic and oxidation parameters over untreated particles.
    Type: Grant
    Filed: January 4, 2000
    Date of Patent: December 26, 2000
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Mark Laurence Doyle, Ivor Rex Harris, Allin Sidney Pratt, David Benjamin Willey