Patents by Inventor Philip W. Livanec

Philip W. Livanec 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: 11578147
    Abstract: In a process for producing an olefin polymer, at least one olefin monomer is polymerized in a polymerization reactor to produce a particulate polymer product containing hydrocarbon impurities including unreacted monomer and other C1 to C8 hydrocarbons. The polymer product is contacted with a gas-containing stream in a stripping vessel under conditions effective to strip hydrocarbon impurities from the polymer product and produce a stripped particulate polymer product and a gaseous first effluent stream containing inert gas and hydrocarbon impurities. The stripped particulate polymer product is recovered and the atmosphere adjacent the stripped particulate polymer product is sensed with a photoionization detector configured to ionize C4 to C8 hydrocarbons. The amount of the gas-containing stream supplied to the stripping vessel is then adjusted based upon such sensing.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: February 14, 2023
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Michael D. Lucas, Philip W. Livanec, Christian T. Lund
  • Publication number: 20210292445
    Abstract: In a process for producing an olefin polymer, at least one olefin monomer is polymerized in a polymerization reactor to produce a particulate polymer product containing hydrocarbon impurities including unreacted monomer and other C1 to C8 hydrocarbons. The polymer product is contacted with a gas-containing stream in a stripping vessel under conditions effective to strip hydrocarbon impurities from the polymer product and produce a stripped particulate polymer product and a gaseous first effluent stream containing inert gas and hydrocarbon impurities. The stripped particulate polymer product is recovered and the atmosphere adjacent the stripped particulate polymer product is sensed with a photoionization detector configured to ionize C4 to C8 hydrocarbons. The amount of the gas-containing stream supplied to the stripping vessel is then adjusted based upon such sensing.
    Type: Application
    Filed: March 8, 2021
    Publication date: September 23, 2021
    Inventors: Michael D. Lucas, Philip W. Livanec, Christian T. Lund
  • Patent number: 10974289
    Abstract: Embodiments relate to solid nano-particles applied to the surface of well equipment to treat bituminous material adhesion. An embodiment provides a method of treating the surface of well equipment. The method may comprise applying a solid nanoparticle film to the surface of the well equipment with a treatment fluid comprising solid nanoparticles. The method may further comprise allowing the solid nanoparticles to interact with the surface of the well equipment and/or bituminous materials adhered to the surface of the well equipment to remove at least a portion of the bituminous materials from the surface of the well equipment.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: April 13, 2021
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Lee J. Hall, Philip W. Livanec
  • Publication number: 20180347279
    Abstract: Embodiments relate to solid nano-particles applied to the surface of well equipment to treat bituminous material adhesion. An embodiment provides a method of treating the surface of well equipment. The method may comprise applying a solid nanoparticle film to the surface of the well equipment with a treatment fluid comprising solid nanoparticles. The method may further comprise allowing the solid nanoparticles to interact with the surface of the well equipment and/or bituminous materials adhered to the surface of the well equipment to remove at least a portion of the bituminous materials from the surface of the well equipment.
    Type: Application
    Filed: August 8, 2018
    Publication date: December 6, 2018
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Lee J. Hall, Philip W. Livanec
  • Patent number: 10077606
    Abstract: Embodiments relate to solid nano-particles applied to the surface of well equipment to treat bituminous material adhesion. An embodiment provides a method of treating the surface of well equipment. The method may comprise applying a solid nanoparticle film to the surface of the well equipment with a treatment fluid comprising solid nanoparticles. The method may further comprise allowing the solid nanoparticles to interact with the surface of the well equipment and/or bituminous materials adhered to the surface of the well equipment to remove at least a portion of the bituminous materials from the surface of the well equipment.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: September 18, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Lee J. Hall, Philip W. Livanec
  • Patent number: 9051508
    Abstract: Of the many compositions and methods provided herein, one method includes a method of preventing emulsification of crude oil into an aqueous-based treatment fluid, comprising: contacting crude oil in a well bore with the aqueous-based treatment fluid comprising a styrene-acrylate copolymer, wherein the crude oil has an API gravity of about 10 or greater; and allowing the styrene-acrylate copolymer to interact with the crude oil in the well bore.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: June 9, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Philip W. Livanec, Gregory P. Perez, Jay P. Deville
  • Publication number: 20140290692
    Abstract: Embodiments relate to solid nano-particles applied to the surface of well equipment to treat bituminous material adhesion. An embodiment provides a method of treating the surface of well equipment. The method may comprise applying a solid nanoparticle film to the surface of the well equipment with a treatment fluid comprising solid nanoparticles. The method may further comprise allowing the solid nanoparticles to interact with the surface of the well equipment and/or bituminous materials adhered to the surface of the well equipment to remove at least a portion of the bituminous materials from the surface of the well equipment.
    Type: Application
    Filed: March 27, 2013
    Publication date: October 2, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Lee J. Hall, Philip W. Livanec