Patents by Inventor Ian Robert Macefield

Ian Robert Macefield 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).

  • Process for tertiary mineral oil production
    Patent number: 9701890
    Abstract: Process for tertiary mineral oil production in which an aqueous injection fluid comprising at least a water soluble polyacrylamide-(co)polymer dissolved in the aqueous fluid is injected into a mineral oil deposit and the aqueous injection fluid is prepared by mixing a liquid dispersion polymer composition comprising particles of polyacrylamide-(co)polymers dispersed in an organic, hydrophobic liquid with an aqueous fluid. Preferably, the process is carried out on an off-shore production site.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: July 11, 2017
    Assignee: BASF SE
    Inventors: Roland Reichenbach-Klinke, Bjorn Langlotz, Ian Robert Macefield, Christian Spindler
  • PROCESS FOR TERTIARY MINERAL OIL PRODUCTION
    Publication number: 20140131039
    Abstract: Process for tertiary mineral oil production in which an aqueous injection fluid comprising at least a water soluble polyacrylamide-(co)polymer dissolved in the aqueous fluid is injected into a mineral oil deposit and the aqueous injection fluid is prepared by mixing a liquid dispersion polymer composition comprising particles of polyacrylamide-(co)polymers dispersed in an organic, hydrophobic liquid with an aqueous fluid. Preferably, the process is carried out on an off-shore production site.
    Type: Application
    Filed: November 13, 2013
    Publication date: May 15, 2014
    Applicant: BASF SE
    Inventors: Roland Reichenbach-Klinke, Bjorn Langlotz, Ian Robert Macefield, Christian Spindler