Patents Represented by Attorney Joanna Xuqiong Wu

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  • Visibility range estimation method and system
    Patent number: 7970178
    Abstract: The present disclosure provides methods and systems for estimating a visibility range in a visibility-degraded environment, e.g., fog. The methods and systems involve digital image processing.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: June 28, 2011
    Assignee: Caterpillar Inc.
    Inventor: Guobiao Song
  • Guard assembly and related methods
    Patent number: 7694805
    Abstract: This disclosure provides a guard assembly and its individual guards for protecting a conveyor system, such as the center conveyor frame. Related methods of installing or removing the individual guards and the guard assembly are also provided.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: April 13, 2010
    Assignee: Caterpillar Paving Products Inc.
    Inventors: Jerry Glenn Schneider, Toby Frelich