Patents Examined by Steven P. Griiffin
  • Hydrogen purification using metal hydride getter material
    Patent number: 6017502
    Abstract: A metal hydride getter purifier operated at less than 350.degree. C. to remove impurities such as carbon dioxide, carbon monoxide, nitrogen, oxygen and water to levels of the order of one ppb or less from hydrogen without creating greater than 10 ppb methane. A cryogenic stage after the getter stage may be used to ensure removal of methane from hydrogen.
    Type: Grant
    Filed: October 16, 1997
    Date of Patent: January 25, 2000
    Assignee: D.D.I., Limited
    Inventors: Giovanni Carrea, Brian D. Warrick