Patents by Inventor Keith Allen Couch

Keith Allen Couch 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).

  • Publication number: 20100152515
    Abstract: One exemplary embodiment can be a fluid catalytic cracking system. The fluid catalytic cracking system can include a reaction zone including a riser having a top and a bottom adapted to receive spent catalyst at a first elevation and regenerated catalyst at a second elevation. Typically, the first elevation is lower than the second elevation. Additionally, the fluid catalytic cracking system can include a gas distributor contained near the bottom of the riser in communication with a hydrocarbon feed.
    Type: Application
    Filed: December 11, 2008
    Publication date: June 17, 2010
    Inventors: Paolo Palmas, Robert Mehlberg, Keith Allen Couch, Paul Nishimura