Patents by Inventor Christopher Ian Bates

Christopher Ian Bates 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).

  • Coated products and use thereof in oil fields
    Patent number: 6764980
    Abstract: An oil field production chemical, especially a scale inhibitor, is in the form of particles thereof carrying a coating e.g. of a dispersing agent. The coating may be polymeric such as an oligomeric polyacid polyester, a polymeric alkoxylated alcohol or a fatty acid polyamine condensate or it may also be a surfactant and may be used in the form of a suspension in an inert oil, such as diesel oil or kerosene which may be injected into a subterranean formation to inhibit the formation of deposits, e.g. scale in oil wells over a longer period than compounds free of the coating.
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: July 20, 2004
    Assignee: BP Exploration Operating Company Limited
    Inventors: Christopher Ian Bates, Ian Ralph Collins, Paul Derek Ravenscroft
  • Coated products and use thereof in oil fields
    Publication number: 20020128157
    Abstract: An oil field production chemical, especially a scale inhibitor, is in the form of particles thereof carrying a coating e.g. of a dispersing agent. The coating may be polymeric such as an oligomeric polyacid polyester, a polymeric alkoxylated alcohol or a fatty acid polyamine condensate or it may also be a surfactant and may be used in the form of a suspension in an inert oil, such as diesel oil or kerosene which may be injected into a subterranean formation to inhibit the formation of deposits, e.g. scale in oil wells over a longer period than compounds free of the coating.
    Type: Application
    Filed: March 7, 2002
    Publication date: September 12, 2002
    Applicant: BP Exploration Operating Company Limited
    Inventors: Christopher Ian Bates, Ian Ralph Collins, Paul Derek Ravenscroft
  • Coated products and use thereof in oil fields
    Patent number: 6380136
    Abstract: An oil field production chemical, especially a scale inhibitor, is in the form of particles thereof carrying a coating e.g. of a dispersing agent. The coating may be polymeric such as an oligomeric polyacid polyester, a polymeric alkoxylated alcohol or a fatty acid polyamine condensate or it may also be a surfactant and may be used in the form of a suspension in an inert oil, such as diesel oil or kerosene which may be injected into a subterranean formation to inhibit the formation of deposits, e.g. scale in oil wells over a longer period than compounds free of the coating.
    Type: Grant
    Filed: November 30, 1998
    Date of Patent: April 30, 2002
    Assignees: BP Exploration Operating Company, Collag Limited
    Inventors: Christopher Ian Bates, Ian Ralph Collins, Paul Derek Ravenscroft