Patents by Inventor Earl Marvin Waterman

Earl Marvin Waterman 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).

  • System for sensing catalyst coating loss and efficiency
    Patent number: 6506605
    Abstract: An OBD system is provided for monitoring an ozone depletion system that includes a catalyst coating containing MnO2 applied to a heat exchange surface on a moving vehicle over which atmospheric air passes. A physical characteristic of the catalyst coating or a material containing a physical characteristic within the catalyst coating is sensed to determine the presence or absence of the catalyst coating for detecting catastrophic failure of the ozone depleting system and/or degradation or wear of the catalyst coating to ascertain the efficiency of the catalyst coating.
    Type: Grant
    Filed: May 26, 2000
    Date of Patent: January 14, 2003
    Assignee: Engelhard Corporation
    Inventors: Fred Mitchell Allen, Xiaolin David Yang, Ronald Marshall Heck, Jeffrey B. Hoke, Earl Marvin Waterman, Xinsheng Liu, Dennis Ray Anderson, Arthur Bruce Robertson, Terence Christopher Poles