Patents by Inventor Jackie C. Watts

Jackie C. Watts 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).

  • Patent number: 5343407
    Abstract: In a fractional distillation process which performs a binary or limited multicomponent separation, and in which it is desired to maintain composition set points for dual product streams, a computer is programmed for applying model based control. Multivariable, noninteracting control of the distillation process is achieved by utilizing a nonlinear model, which calculates process vapor and distillate flow rates required to maintain product set points. The model, which applies tray-to-tray calculation essentially derived from a McCabe-Thiele analysis, is periodically updated by adjusting tray efficiency based on steady state composition measurements to keep the model in pace with changing process conditions.
    Type: Grant
    Filed: November 1, 1991
    Date of Patent: August 30, 1994
    Assignee: Phillips Petroleum Company
    Inventors: Martin H. Beauford, Jackie C. Watts
  • Patent number: 5260865
    Abstract: In a fractional distillation process which performs a binary or limited multicomponent separation, and in which it is desired to maintain composition set points for dual product streams, a computer is programmed for applying model based control. Multivariable, noninteracting control of the distillation process is achieved by utilizing a nonlinear model, which calculates process vapor and distillate flow rates required to maintain product set points. The model, which applies tray-to-tray calculation essentially derived from a McCabe-Thiele analysis, is periodically updated by adjusting tray efficiency based on steady state composition measurements to keep the model in pace with changing process conditions.
    Type: Grant
    Filed: April 1, 1991
    Date of Patent: November 9, 1993
    Inventors: Martin H. Beauford, Jackie C. Watts, James B. Riggs
  • Patent number: 4312967
    Abstract: An olefin polymerization catalyst is provided comprising chromium oxide on a titanium-containing silica support having at least about 3 weight percent titanium in combination with an organoboron promoter. The titanium may be incorporated by coprecipitation with the silica gel or added anhydrously or nonanhydrously to the silica gel. The polymerization process comprises the contacting of olefin monomer with the titanium-containing chromium oxide catalyst in the presence of an organoboron promoter.
    Type: Grant
    Filed: February 6, 1980
    Date of Patent: January 26, 1982
    Assignee: Phillips Petroleum Co.
    Inventors: Donald D. Norwood, Jackie C. Watts