Patents by Inventor Brian James Duck

Brian James Duck 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).

  • Multi-bed selective catalytic reduction system
    Patent number: 7638107
    Abstract: A multi-bed selective catalytic reduction system comprising a gas input duct, a first ammonia injection grid assembly located downstream from the gas input duct, a first selective catalytic reduction catalyst assembly located downstream from the first ammonia injection grid assembly, a second ammonia injection grid assembly located downstream from the first selective catalytic reduction catalyst assembly, a second selective catalytic reduction catalyst assembly located downstream from the second ammonia injection grid assembly, and an exhaust stack located downstream from the second selective catalytic reduction catalyst assembly.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: December 29, 2009
    Assignee: Callidus Technologies, LLC
    Inventors: Jeffrey Philip Wirt, Dan W. Ott, Brian James Duck