Patents by Inventor Dawn C. Wiser

Dawn C. Wiser 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).

  • Selective oligomerization catalysts and methods of identifying same
    Patent number: 9721070
    Abstract: A method comprising obtaining a control catalyst set having a plurality of members each having a control characteristic, wherein the members of the control catalyst set comprise a transition metal and an organic ligand, selecting an intermediate formed during a catalytic cycle of each member of the control catalyst set, geometrically and energetically optimizing a structure of the intermediate, determining one or more characteristics of the geometrically and energetically optimized structure of the intermediate, determining a mathematical relationship between the control characteristic and the one or more characteristics of the geometrically and energetically optimized structure of the intermediate, utilizing the mathematical relationship to identify one or more members of a sample catalyst set having a control characteristic within a desired range, contacting the identified sample catalyst with a reactant under conditions suitable for the formation of product, and recovering the product.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: August 1, 2017
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Orson L. Sydora, Dawn C. Wiser
  • Selective Oligomerization Catalysts and Methods of Identifying Same
    Publication number: 20150178475
    Abstract: A method comprising obtaining a control catalyst set having a plurality of members each having a control characteristic, wherein the members of the control catalyst set comprise a transition metal and an organic ligand, selecting an intermediate formed during a catalytic cycle of each member of the control catalyst set, geometrically and energetically optimizing a structure of the intermediate, determining one or more characteristics of the geometrically and energetically optimized structure of the intermediate, determining a mathematical relationship between the control characteristic and the one or more characteristics of the geometrically and energetically optimized structure of the intermediate, utilizing the mathematical relationship to identify one or more members of a sample catalyst set having a control characteristic within a desired range, contacting the identified sample catalyst with a reactant under conditions suitable for the formation of product, and recovering the product.
    Type: Application
    Filed: December 19, 2013
    Publication date: June 25, 2015
    Inventors: Orson L. Sydora, Dawn C. Wiser
  • Propylene impact copolymers
    Patent number: 6492465
    Abstract: This invention relates to propylene impact copolymer compositions. In particular, these unique and improved compositions can be produced using conventional, commercial-scale processes.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: December 10, 2002
    Assignee: ExxonMobil Chemical Patents, Inc.
    Inventors: Terry John Burkhardt, Robert Tan Li, Aspy Keki Mehta, Udo M. Stehling, William T. Haygood, Jr., Francis C. Rix, Dawn C. Wiser
  • Propylene impact copolymers
    Patent number: 6472474
    Abstract: This invention relates to propylene impact copolymer compositions. In particular, these unique and improved compositions can be produced using conventional, commercial-scale processes.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: October 29, 2002
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Terry John Burkhardt, Robert Tan Li, Aspy Keki Mehta, Udo M. Stehling, William T. Haygood, Jr., Francis C. Rix, Dawn C. Wiser
  • Propylene impact copolymers
    Publication number: 20020086947
    Abstract: This invention relates to propylene impact copolymer compositions. In particular, these unique and improved compositions can be produced using conventional, commercial-scale processes.
    Type: Application
    Filed: November 27, 2001
    Publication date: July 4, 2002
    Inventors: Terry John Burkhardt, Robert Tan Li, Aspy Keki Mehta, Udo M. Stehling, William T. Haygood, Francis C. Rix, Dawn C. Wiser
  • Propylene impact copolymers
    Patent number: 6384142
    Abstract: This invention relates to propylene impact copolymer compositions. In particular, these unique and improved compositions can be produced using conventional, commercial-scale processes.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: May 7, 2002
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Terry John Burkhardt, Robert Tan Li, Aspy Keki Mehta, Udo M. Stehling, William T. Haygood, Jr., Francis C. Rix, Dawn C. Wiser
  • Propylene impact copolymers
    Patent number: 6342566
    Abstract: This invention relates to propylene impact copolymer compositions. In particular, these unique and improved compositions can be produced using conventional, commercial-scale processes.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: January 29, 2002
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Terry John Burkhardt, Robert Tan Li, Aspy Keki Mehta, Udo M. Stehling, William T. Haygood, Jr., Francis C. Rix, Dawn C. Wiser
  • Propylene impact copolymers
    Publication number: 20010034411
    Abstract: This invention relates to propylene impact copolymer compositions. In particular, these unique and improved compositions can be produced using conventional, commercial-scale processes.
    Type: Application
    Filed: May 21, 2001
    Publication date: October 25, 2001
    Inventors: Terry John Burkhardt, Robert Tan Li, Aspy Keki Mehta, Udo M. Stehling, William T. Haygood, Francis C. Rix, Dawn C. Wiser