Patents by Inventor Dale Shields

Dale Shields 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).

  • High flux, microporous, sieving membranes and separators containing such membranes and processes using such membranes
    Publication number: 20060201884
    Abstract: A sieving membrane comprises a thin, microporous barrier to provide a high flux. The membrane structure can tolerate defects yet still obtain commercially-attractive separations.
    Type: Application
    Filed: March 10, 2006
    Publication date: September 14, 2006
    Inventors: Santi Kulprathipanja, Chunquing Liu, Stephen Wilson, David Lesch, Lynn Rice, David Shecterle, Dale Shields, Stanley Frey
  • Process and apparatus for oligomerization in multiple stages with single fractionation column
    Publication number: 20060135832
    Abstract: In an oligomerization process comprising at least two oligomerization reactors, at least portions of product streams from two reactors are separated in the same separator vessel. In an embodiment, a liquid product stream from the first oligomerization reactor is fed to a fractionation column and a side cut from the fractionation column feeds the second oligomerization reactor.
    Type: Application
    Filed: December 16, 2004
    Publication date: June 22, 2006
    Inventors: Bipin Vora, Charles Luebke, Jill Meister, Michael Schultz, Dale Shields
  • Alkylation process with efficient effluent refrigeration
    Publication number: 20050197516
    Abstract: An alkylation process in which a recycle stream is cooled by heat exchange with the alkylation reactor effluent is disclosed.
    Type: Application
    Filed: April 6, 2005
    Publication date: September 8, 2005
    Inventors: Robert Mehlberg, Dale Shields, John Senetar