Patents by Inventor Bruce Welch

Bruce Welch 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: 7230128
    Abstract: Fluorenyl-containing metallocenes are disclosed along with methods for making the metallocenes. Also disclosed are methods for using the metallocenes as polymerization catalysts. In addition, polymers resulting from such polymerizations are disclosed.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: June 12, 2007
    Assignee: Phillips Potroleum Company
    Inventors: Helmut G. Alt, Syriac J. Palackal, Konstantinos Patsidis, M. Bruce Welch, Rolf L. Geerts, Eric T. Hsieh, Max P. McDaniel, Gil R. Hawley, Paul D. Smith
  • Patent number: 7220704
    Abstract: A composition comprising a promoter and a metal oxide selected from the group consisting of a gallium oxide, an indium oxide, and combinations of any two or more thereof, wherein at least a portion of the promoter is present as a reduced valence promoter and methods of preparing such composition are disclosed. The thus-obtained composition is employed in a desulfurization zone to remove sulfur from a hydrocarbon stream.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: May 22, 2007
    Assignee: ConocoPhillips Company
    Inventors: Robert W. Morton, Jason J. Gislason, M. Bruce Welch, David E. Simon, Roland Schmidt
  • Publication number: 20060104156
    Abstract: The present system comprises an apparatus and a process for continuously dispersing fine particles in a liquid. The apparatus comprises a mixer that has at least on inlet for receiving the fine particles and liquid and an outlet. The mixer further comprises a barrel that has an inlet for accepting the fine particles and an outlet for dispersing the fine particles and tank for holding the liquid. The tank has a top surface in which the barrel is disposed such that the outlet of the barrel is disposed under the surface of the liquid. An inlet of a vacuum centrifuge is coupled to the outlet of the mixer to receive a mixture of liquid and fine particles. A surge tank is coupled to an outlet of the vacuum centrifuge, wherein the mixture is dispersed from an outlet of the surge tank.
    Type: Application
    Filed: December 28, 2005
    Publication date: May 18, 2006
    Inventors: Robert Villwock, Bryan Martel, Bruce Welch, Joseph Cochran
  • Patent number: 6992035
    Abstract: Metallocene having two cyclic dienyl groups connected by a single carbon having an aryl substituent and a terminally unsaturated hydrocarbyl substituent, olefin polymerization catalyst systems prepared therefrom, and the use of such catalyst systems are disclosed.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: January 31, 2006
    Assignee: Phillips Petroleum Company
    Inventors: M. Bruce Welch, Syriac J. Palackal, Bryan E. Hauger, David W. Dockter, Alexander Köppl, Helmut G. Alt
  • Publication number: 20050237853
    Abstract: The disclosed device is directed towards a mixer apparatus comprising a barrel defining an interior and an exterior. The barrel has a first end and a second end opposite thereof. The barrel defines at least one inlet proximate to the first end and an outlet proximate to the second end. A motor unit is in operative communication with the barrel. A moving element is disposed in the interior of the barrel. The moving element is configured to move material through the barrel to the outlet of the barrel. At least one first mixing element is fluidly coupled to the outlet.
    Type: Application
    Filed: March 24, 2005
    Publication date: October 27, 2005
    Inventors: Bryan Martel, Robert Villwock, Bruce Welch, Joseph Cochran, Joshua Een
  • Patent number: 6914033
    Abstract: A composition comprising a promoter and a metal oxide selected from the group consisting of a cerium oxide, a scandium oxide, a lanthanum oxide, and combinations of any two or more thereof, wherein at least a portion of the promoter is present as a reduced valence promoter and methods of preparing such composition are disclosed. The thus-obtained composition is employed in a desulfurization zone to remove sulfur from a hydrocarbon stream.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: July 5, 2005
    Assignee: ConocoPhillips Company
    Inventors: Jason J. Gislason, Robert W. Morton, Roland Schmidt, M. Bruce Welch
  • Publication number: 20040178117
    Abstract: A composition comprising a promoter, a metal oxide, a support component, and a silicon-containing material, wherein at least a portion of the promoter is present as a reduced valence promoter and methods of preparing such composition are disclosed. The thus-obtained composition is employed in a desulfurization zone to remove sulfur from a hydrocarbon stream.
    Type: Application
    Filed: March 11, 2003
    Publication date: September 16, 2004
    Inventors: Robert W. Morton, M. Bruce Welch, Roland Schmidt, Jason J. Gislason
  • Publication number: 20040063578
    Abstract: A composition comprising a promoter and a metal oxide selected from the group consisting of a gallium oxide, an indium oxide, and combinations of any two or more thereof, wherein at least a portion of the promoter is present as a reduced valence promoter and methods of preparing such composition are disclosed. The thus-obtained composition is employed in a desulfurization zone to remove sulfur from a hydrocarbon stream.
    Type: Application
    Filed: October 1, 2002
    Publication date: April 1, 2004
    Inventors: Robert W. Morton, Jason J. Gislason, M. Bruce Welch, David E. Simon, Roland Schmidt
  • Publication number: 20040040887
    Abstract: A composition comprising a promoter and a metal oxide selected from the group consisting of a niobium oxide, a tantalum oxide, and combinations thereof, wherein at least a portion of the promoter is present as a reduced valence promoter and methods of preparing such composition are disclosed. The thus-obtained composition is employed in a desulfurization zone to remove sulfur from a hydrocarbon stream.
    Type: Application
    Filed: August 30, 2002
    Publication date: March 4, 2004
    Inventors: David E. Simon, Robert W. Morton, Roland Schmidt, Jason J. Gislason, M. Bruce Welch
  • Publication number: 20040040890
    Abstract: A composition comprising a promoter and a metal oxide selected from the group consisting of tungsten oxide, a molybdenum oxide, and combinations of any two or more thereof, wherein at least a portion of the promoter is present as a reduced valence promoter and methods of preparing such composition are disclosed. The thus-obtained composition is employed in a desulfurization zone to remove sulfur from a hydrocarbon stream.
    Type: Application
    Filed: August 30, 2002
    Publication date: March 4, 2004
    Inventors: Robert W. Morton, Jason J. Gislason, Roland Schmidt, M. Bruce Welch
  • Publication number: 20040038816
    Abstract: A composition comprising a tin oxide and a promoter, wherein at least a portion of the promoter is present as a reduced valence promoter and methods of preparing such composition are disclosed. The thus-obtained composition is employed in a desulfurization zone to remove sulfur from a hydrocarbon stream.
    Type: Application
    Filed: August 20, 2002
    Publication date: February 26, 2004
    Inventors: Robert W. Morton, Jason J. Gislason, Roland Schmidt, M. Bruce Welch
  • Publication number: 20040031730
    Abstract: A composition comprising a promoter and a metal oxide selected from the group consisting of a cerium oxide, a scandium oxide, a lanthanum oxide, and combinations of any two or more thereof, wherein at least a portion of the promoter is present as a reduced valence promoter and methods of preparing such composition are disclosed. The thus-obtained composition is employed in a desulfurization zone to remove sulfur from a hydrocarbon stream.
    Type: Application
    Filed: August 13, 2002
    Publication date: February 19, 2004
    Inventors: Jason J. Gislason, Robert W. Morton, Roland Schmidt, M. Bruce Welch
  • Publication number: 20040007498
    Abstract: A composition comprising an iron oxide and a promoter, wherein at least a portion of the promoter is present as a reduced valence promoter and methods of preparing such composition are disclosed. The thus-obtained composition is employed in a desulfurization zone to remove sulfur from a hydrocarbon stream.
    Type: Application
    Filed: July 11, 2002
    Publication date: January 15, 2004
    Inventors: Jason J. Gislason, Robert W. Morton, Roland Schmidt, M. Bruce Welch
  • Publication number: 20040007130
    Abstract: A composition comprising a cadmium oxide and a promoter, wherein at least a portion of the promoter is present as a reduced valence promoter and methods of preparing such composition are disclosed. The thus-obtained composition is employed in a desulfurization zone to remove sulfur from a hydrocarbon stream.
    Type: Application
    Filed: July 11, 2002
    Publication date: January 15, 2004
    Inventors: Jason J. Gislason, Roland Schmidt, M. Bruce Welch, David E. Simon, Robert W. Morton
  • Publication number: 20030144438
    Abstract: Pyridyldiimine ligands having one of the following structures: 1
    Type: Application
    Filed: September 20, 2002
    Publication date: July 31, 2003
    Applicant: Phillips Petroleum Company
    Inventors: Roland Schmidt, Ulrich Hammon, M. Bruce Welch, Helmut G. Alt, Bryan E. Hauger, Ronald D. Knudsen
  • Publication number: 20030130447
    Abstract: The present invention provides a process for producing a polymer having a desired melt index. Pursuant to the process of the present invention an inorganic oxide sample is obtained and dried to a desired extent by controlling the drying conditions. The dried inorganic oxide sample is treated with an organoaluminoxide and a metallocene to form a metallocene catalyst system and contacted with an olefin under conditions supporting polymerization to form a polyolefin sample. The drying conditions are selected to produce an inorganic oxide sample capable of generating a metallocene catalyst system which produces polymer having the desired melt index.
    Type: Application
    Filed: December 30, 1999
    Publication date: July 10, 2003
    Inventors: M BRUCE WELCH, DAVID W DOCKTER, SYRIAC J PALACKAL, BRYAN E HAUGER, GYANESH P KHARE
  • Publication number: 20030105252
    Abstract: A solid particulate metallocene-containing catalyst system is produced by combining an alkenyl substituted indenyl (t-butylamido)dimethyl silane titanium dichloride half sandwich metallocene in which the alkenyl substituent on the indenyl has terminal olefinic unsaturation and 5 to 6 carbon atoms with a suitable cocatalyst in a liquid and conducting prepolymerization of at least one olefin, optionally in multiple steps, to produce a prepolymerized solid catalyst, and separating the resulting solid from the liquid and the components dissolved in the liquid, said solid being the inventive solid particulate metallocene catalyst system. The use of the solid particulate catalyst in the polymerization of olefins is also disclosed.
    Type: Application
    Filed: October 31, 2001
    Publication date: June 5, 2003
    Inventors: Alexander Reb, Helmut G. Alt, M. Bruce Welch
  • Publication number: 20030092925
    Abstract: Metallocene having two cyclic dienyl groups connected by a single carbon having an aryl substituent and a terminally unsaturated hydrocarbyl substituent, olefin polymerization catalyst systems prepared therefrom, and the use of such catalyst systems are disclosed.
    Type: Application
    Filed: September 23, 2002
    Publication date: May 15, 2003
    Applicant: PHILLIPS PETROLEUM COMPANY
    Inventors: M. Bruce Welch, Syriac J. Palackal, Bryan E. Hauger, David W. Dockter, Alexander Koppl, Helmut G. Alt
  • Publication number: 20030060358
    Abstract: A process for producing a new metallocene comprising reacting a first bridged metallocene which has an olefinically unsaturated with about two molar equivalents of an alkali metal alkyl, catalyst systems resulting from the combination of the resulting metallocenes and a cocatalyst, and polymerization processes using such catalyst systems are disclosed.
    Type: Application
    Filed: October 28, 2002
    Publication date: March 27, 2003
    Applicant: PHILLIPS PETROLEUM COMPANY
    Inventors: Erik Licht, Helmut G. Alt, M. Bruce Welch, Bryan E. Hauger
  • Patent number: 6531554
    Abstract: Metallocycle metallocenes are produced by reacting a first metallocene having an aralkyl group or an aryl dialkyl silyl group attached to a cyclodienyl group with about two molar equivalents of an alkali metal alkyl having at least 4 carbon atoms. The use of the metallocycle metallocenes as components of catalyst for the polymerization of olefins is also disclosed.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: March 11, 2003
    Assignee: Phillips Petroleum Company
    Inventors: Helmut G. Alt, M. Bruce Welch