Patents by Inventor Stanley Allan Grabow

Stanley Allan Grabow 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).

  • Multimodal polyolefin pipe
    Patent number: 6858677
    Abstract: A solution polymerization process in a series or parallel of two or more reactors at different temperatures is used to prepare a multimodal polyolefin resin of narrow molecular weight distribution. This resin is used to manufacture melt extruded pipe that has an improved performance at elevated temperatures and an improved hydrostatic design.
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: February 22, 2005
    Assignee: Nova Chemicals (International) S.A.
    Inventors: Alexei Kazakov, Stephen John Brown, Christopher John Brooke Dobbin, Stanley Allan Grabow
  • Multimodal polyolefin pipe
    Publication number: 20040054088
    Abstract: A solution polymerization process in a series or parallel of two or more reactors at different temperatures is used to prepare a multimodal polyolefin resin of narrow molecular weight distribution. This resin is used to manufacture melt extruded pipe that has an improved performance at elevated temperatures and an improved hydrostatic design.
    Type: Application
    Filed: August 20, 2003
    Publication date: March 18, 2004
    Applicant: NOVA CHEMICALS (INTERNATIONATIONAL) S.A.
    Inventors: Alexei Kazakov, Stephen John Brown, Christopher John Brooke Dobbin, Stanley Allan Grabow
  • Multimodal polyolefin pipe
    Patent number: 6642313
    Abstract: A solution polymerization process in a series or parallel of two or more reactors at different temperatures is used to prepare a multimodal polyolefin resin of narrow molecular weight distribution. This resin is used to manufacture melt extruded pipe that has an improved performance at elevated temperatures and an improved hydrostatic design.
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: November 4, 2003
    Assignee: Nova Chemicals (International) S.A.
    Inventors: Alexei Kazakov, Stephen John Brown, Christopher John Brooke Dobbin, Stanley Allan Grabow