Patents by Inventor Jeffrey Lucht

Jeffrey Lucht 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).

  • Method and apparatus for making ultra-pure hydrogen
    Patent number: 5955044
    Abstract: Ultra-high purity hydrogen is produced from a hydrogen stream containing impurities including carbon monoxide and carbon dioxide, by first depleting the stream of carbon monoxide and carbon dioxide, than passing it through a semipermeable membrane such as a palladium-silver membrane, to remove methane, water and other impurities. Preferably, a methanation catalyst is used in the first step to convert the carbon monoxide and carbon dioxide to methane and water. This stream, free of carbon monoxide and carbon dioxide, is then passed through the semipermeable membrane to separate the remaining impurities.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: September 21, 1999
    Assignees: Johnson Matthey Inc., Air Products and Chemicals Inc.
    Inventors: Jeffrey Lucht, Thomas Hsiao-Ling Hsiung