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Stephen Brown

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  • Calgary, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Self cleaning reactor system
    • Patent number 11,548,837
    • Issue date Jan 10, 2023
    • Nova Chemicals (International) S.A.
    • Stephen Brown
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Off-line filter free Ziegler-Natta catalyst preparation
    • Patent number 11,186,655
    • Issue date Nov 30, 2021
    • Nova Chemicals (International) S.A.
    • Qinyan Wang
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Catalyst injection system for an olefin polymerization reactor
    • Patent number 11,066,493
    • Issue date Jul 20, 2021
    • Nova Chemicals (International) S.A.
    • Stephen Brown
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Solution polymerization process
    • Patent number 10,975,170
    • Issue date Apr 13, 2021
    • Nova Chemicals (International) S.A.
    • Yves Lacombe
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Non adiabatic 2-phase (liquid-liquid) polymerization process
    • Patent number 10,844,144
    • Issue date Nov 24, 2020
    • Nova Chemicals (International) S.A.
    • Stephen Brown
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Optimized agitator system for production of polyolefin
    • Patent number 10,675,605
    • Issue date Jun 9, 2020
    • Nova Chemicals (International) S.A.
    • Yves Lacombe
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Multi reactor solution polymerization, polyethylene and polyethylen...
    • Patent number 10,538,654
    • Issue date Jan 21, 2020
    • Nova Chemicals (International) S.A.
    • XiaoChuan Wang
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Continuous ethylene oligomerization with in-situ catalyst preparation
    • Patent number 10,343,152
    • Issue date Jul 9, 2019
    • Nova Chemicals (International) S.A.
    • Peter Zoricak
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Heat management in ethylene oligomerization
    • Patent number 10,160,696
    • Issue date Dec 25, 2018
    • Nova Chemicals (International) S.A.
    • Isam Jaber
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Shrink film from single site catalyzed polyethylene
    • Patent number 10,093,780
    • Issue date Oct 9, 2018
    • Nova Chemicals (International) S.A.
    • XiaoChuan Wang
    • B32 - LAYERED PRODUCTS
  • Information Patent Grant

    Films produced from ethylene interpolymer products
    • Patent number 10,023,729
    • Issue date Jul 17, 2018
    • Nova Chemicals (International) S.A.
    • Marcelo Yamane
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Multi reactor solution polymerization
    • Patent number 9,963,529
    • Issue date May 8, 2018
    • Nova Chemicals (International) S.A.
    • Niousha Kazemi
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Continuous ethylene tetramerization process
    • Patent number 9,688,588
    • Issue date Jun 27, 2017
    • Nova Chemicals (International) S.A.
    • Peter Zoricak
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Catalyst activation in a dual reactor process
    • Patent number 8,431,657
    • Issue date Apr 30, 2013
    • Nova Chemicals (International) S.A.
    • XiaoChuan Wang
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Multi reactor process
    • Patent number 8,101,693
    • Issue date Jan 24, 2012
    • Nova Chemicals (International) S.A.
    • Lauwrence Martin Jozef Van Asseldonk
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    On the fly catalyst transitions
    • Patent number 7,741,414
    • Issue date Jun 22, 2010
    • Nova Chemicals (International) S.A.
    • Stephen John Brown
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Rotomolding process with reduced cycle times
    • Patent number 7,201,864
    • Issue date Apr 10, 2007
    • Nova Chemicals (International) S.A.
    • Mark Weber
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Heterogeneous/homogeneous copolymer
    • Patent number 6,984,695
    • Issue date Jan 10, 2006
    • Nova Chemicals (International) S.A.
    • Stephen John Brown
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Multimodal polyolefin pipe
    • Patent number 6,858,677
    • Issue date Feb 22, 2005
    • Nova Chemicals (International) S.A.
    • Alexei Kazakov
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Solution polymerization process
    • Patent number 6,777,509
    • Issue date Aug 17, 2004
    • Nova Chemicals (International) S.A.
    • Stephen John Brown
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Bis-phosphinimine catalyst
    • Patent number 6,649,558
    • Issue date Nov 18, 2003
    • Nova Chemicals (International) S.A.
    • Stephen John Brown
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Multimodal polyolefin pipe
    • Patent number 6,642,313
    • Issue date Nov 4, 2003
    • Nova Chemicals (International) S.A.
    • Alexei Kazakov
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Process to prepare ethylene propylene elastomer
    • Patent number 6,486,276
    • Issue date Nov 26, 2002
    • Nova Chemicals (International) S.A.
    • Qinyan Wang
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Hydrocarbyl phosphinimine/cyclopentadienyl complexes of group IV me...
    • Patent number 6,440,890
    • Issue date Aug 27, 2002
    • NOVA Chemicals (International) S.A.
    • Rupert Edward von Haken Spence
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Catalyst having a ketimide ligand
    • Patent number 6,420,300
    • Issue date Jul 16, 2002
    • Nova Chemicals (International) S.A.
    • John McMeeking
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Dual reactor polyethylene process using a phosphinimine catalyst
    • Patent number 6,372,864
    • Issue date Apr 16, 2002
    • NOVA Chemicals (International) S.A.
    • Stephen John Brown
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Cyclopentadienyl/phosphinimine catalyst with one and only one activ...
    • Patent number 6,355,744
    • Issue date Mar 12, 2002
    • Nova Chemicals (International) S.A.
    • Rupert Edward von Haken Spence
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Polymerization catalyst having a phosphinimine ligand
    • Patent number 6,342,463
    • Issue date Jan 29, 2002
    • Nova Chemicals (International) S.A.
    • Douglas W. Stephan
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Dual reactor ethylene polymerization process
    • Patent number 6,277,931
    • Issue date Aug 21, 2001
    • Nova Chemical (International) S.A
    • Isam Jaber
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Bis-phosphinimine catalyst
    • Patent number 6,239,238
    • Issue date May 29, 2001
    • Nova Chemicals (International) S.A.
    • Stephen John Brown
    • C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents