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William A. Matthews

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  • Victoria, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Polymer flow index modifier
    • Patent number 11,655,316
    • Issue date May 23, 2023
    • Univation Technologies, LLC
    • Charles D. Lester
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Producing a polyethylene polymer
    • Patent number 11,421,054
    • Issue date Aug 23, 2022
    • Univation Technologies, LLC
    • Samuel Bernal
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Methods for controlling polymer properties
    • Patent number 11,267,918
    • Issue date Mar 8, 2022
    • Univation Technologies, LLC
    • Mark G. Goode
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Producing a polyethylene polymer
    • Patent number 11,014,998
    • Issue date May 25, 2021
    • Univation Technologies, LLC
    • Samuel Bernal
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polymer flow index modifier
    • Patent number 10,870,719
    • Issue date Dec 22, 2020
    • Univation Technologies, LLC
    • Charles D. Lester
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Methods for controlling polymer properties
    • Patent number 10,227,428
    • Issue date Mar 12, 2019
    • Univation Technologies, LLC
    • Mark G. Goode
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Closed reactor transitions between metallocene catalysts
    • Patent number 10,221,254
    • Issue date Mar 5, 2019
    • Univation Technologies, LLC
    • Brandon C. Locklear
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Catalyst feed systems and methods for using the same
    • Patent number 8,496,882
    • Issue date Jul 30, 2013
    • Univation Technologies, LLC
    • William A. Matthews
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Catalyst feed systems and methods for using the same
    • Patent number 8,206,654
    • Issue date Jun 26, 2012
    • Univation Technologies, LLC
    • William A. Matthews
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Gas-phase polymerization process to achieve a high particle density
    • Patent number 7,714,082
    • Issue date May 11, 2010
    • Univation Technologies, LLC
    • Ping P. Cai
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Process control in the presence of chromium based catalysts
    • Patent number 5,844,054
    • Issue date Dec 1, 1998
    • Paul Kevin Samples
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

  • Information Patent Application

    POLYMER FLOW INDEX MODIFIER
    • Publication number 20210102016
    • Publication date Apr 8, 2021
    • UNIVATION TECHNOLOGIES, LLC
    • Charles D. Lester
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    PRODUCING A POLYETHYLENE POLYMER
    • Publication number 20210047445
    • Publication date Feb 18, 2021
    • UNIVATION TECHNOLOGIES, LLC
    • Samuel Bernal
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    PRODUCING A POLYETHYLENE POLYMER
    • Publication number 20200079886
    • Publication date Mar 12, 2020
    • UNIVATION TECHNOLOGIES, LLC
    • Samuel Bernal
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    METHODS FOR CONTROLLING POLYMER PROPERTIES
    • Publication number 20190161568
    • Publication date May 30, 2019
    • UNIVATION TECHNOLOGIES, LLC
    • Mark G. Goode
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    POLYMER FLOW INDEX MODIFIER
    • Publication number 20190119416
    • Publication date Apr 25, 2019
    • UNIVATION TECHNOLOGIES, LLC
    • Charles D. Lester
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    CLOSED REACTOR TRANSITIONS BETWEEN METALLOCENE CATALYSTS
    • Publication number 20180079836
    • Publication date Mar 22, 2018
    • UNIVATION TECHNOLOGIES, LLC
    • Brandon C. Locklear
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    METHODS FOR CONTROLLING POLYMER PROPERTIES
    • Publication number 20160297907
    • Publication date Oct 13, 2016
    • UNIVATION TECHNOLOGIES, LLC
    • Mark G. Goode
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    Catalyst Feed Systems and Methods for Using the Same
    • Publication number 20120219463
    • Publication date Aug 30, 2012
    • UNIVATION TECHNOLOGIES, LLC
    • William A. Matthews
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    Catalyst Feed Systems and Methods for Using the Same
    • Publication number 20100324233
    • Publication date Dec 23, 2010
    • UNIVATION TECHNOLOGIES, LLC
    • William A. Matthews
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    Gas-phase polymerization process to achieve a high particle density
    • Publication number 20070078239
    • Publication date Apr 5, 2007
    • Ping Cai
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    Method for sonic cleaning of reactor with reduced acoustic wave can...
    • Publication number 20060130870
    • Publication date Jun 22, 2006
    • Ping Cai
    • B08 - CLEANING