Patents by Inventor William L. Valerioti

William L. Valerioti 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).

  • Methods for removing polymer skins from reactor walls
    Patent number: 8487053
    Abstract: Methods for removing polymer skins or build-up from reactor walls in polymerization reactor systems containing a loop slurry reactor are disclosed. Such methods can employ removing some or all of the comonomer from the reactor system in combination with increasing the polymerization temperature of the loop slurry reactor.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: July 16, 2013
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: George R. Rajaendran, Max P. McDaniel, Gregory G. Hendrickson, John D. Stewart, John D. Hottovy, Ted H. Cymbaluk, Susannah Lane, Richard A. Hernandez, Elliott W. Johnson, Qing Yang, William L. Valerioti, Eric Schwerdtfeger, Albert P. Masino
  • Methods for Removing Polymer Skins from Reactor Walls
    Publication number: 20130137836
    Abstract: Methods for removing polymer skins or build-up from reactor walls in polymerization reactor systems containing a loop slurry reactor are disclosed. Such methods can employ removing some or all of the comonomer from the reactor system in combination with increasing the polymerization temperature of the loop slurry reactor.
    Type: Application
    Filed: November 30, 2011
    Publication date: May 30, 2013
    Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP
    Inventors: George R. Rajaendran, Max P. McDaniel, Gregory G. Hendrickson, John D. Stewart, John D. Hottovy, Ted H. Cymbaluk, Suzannah Lane, Richard A. Hernandez, Elliott W. Johnson, Qing Yang, William L. Valerioti, Eric Schwerdtfeger, Albert P. Masino