Patents by Inventor Leonard E. Powell

Leonard E. Powell 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).

  • Polyolefin reactor system having a gas phase reactor
    Patent number: 9433914
    Abstract: A system and method for polymerizing olefin in a gas phase reactor into a polyolefin in presence of catalyst, measuring static charge in the reactor system; determining an indication of polyolefin fines in the reactor system, and adjusting operation of the reactor system in response to the indication.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: September 6, 2016
    Assignee: Chevron Phillips Chemical Company, LP
    Inventors: Gregory G. Hendrickson, Leonard E. Powell, Michael A. Rhodes, Joel Mutchler, Bruce E. Kreischer, Maruti Bhandarker, Rebecca A. Gonzales, Bruce H. Marantis
  • POLYOLEFIN REACTOR SYSTEM HAVING A GAS PHASE REACTOR
    Publication number: 20150175719
    Abstract: A system and method for polymerizing olefin in a gas phase reactor into a polyolefin in presence of catalyst, measuring static charge in the reactor system; determining an indication of polyolefin fines in the reactor system, and adjusting operation of the reactor system in response to the indication.
    Type: Application
    Filed: December 20, 2013
    Publication date: June 25, 2015
    Inventors: Gregory G. Hendrickson, Leonard E. Powell, Michael A. Rhodes, Joel Mutchler, Bruce E. Kreischer, Maruti Bhandarker, Rebecca A. Gonzales, Bruce H. Marantis