Patents by Inventor Mark C. Lefebvre

Mark C. Lefebvre 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).

  • Methods of producing oxygen reduction catalyst
    Patent number: 6689711
    Abstract: Methods of making an oxygen reduction catalyst are described in which carbon black, one or more metal-containing and/or nitrogen-containing precursor(s) are provided to a reaction zone, and the carbon black is rendered catalytically active. To form this catalytic activity, the carbon black and one or more metal-containing and/or nitrogen-containing precursor(s) are introduced to a reaction zone heated to a temperature of between about 600 and about 1000 degrees Celsius, and maintained together in the reaction zone for a cumulative time between 5 seconds and 240 minutes.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: February 10, 2004
    Assignee: Metallic Power, Inc.
    Inventor: Mark C. Lefebvre
  • Methods of producing oxygen reduction catalyst
    Publication number: 20030069129
    Abstract: Methods of making an oxygen reduction catalyst are described in which carbon black, one or more metal-containing and/or nitrogen-containing precursor(s) are provided to a reaction zone, and the carbon black is rendered catalytically active. To form this catalytic activity, the carbon black and one or more metal-containing and/or nitrogen-containing precursor(s) are introduced to a reaction zone heated to a temperature of between about 600 and about 1000 degrees Celsius, and maintained together in the reaction zone for a cumulative time between 5 seconds and 240 minutes.
    Type: Application
    Filed: October 9, 2001
    Publication date: April 10, 2003
    Inventor: Mark C. Lefebvre