Dynamic annular pressure control apparatus and method
Details for Australian Patent Application No. 2004213597 (hide)
International Classifications
Event Publications
8 September 2005 PCT application entered the National Phase
PCT publication WO2004/074627 Priority application(s): WO2004/074627
31 May 2007 Application Accepted
Published as AU-B-2004213597
27 September 2007 Standard Patent Sealed
20 November 2008 Assignment Registered
Shell Internationale Research Maatschappij B.V. The patent has been assigned to @Balance B.V.
24 February 2011 Assignment Registered
@Balance B.V. The patent has been assigned to PRAD Research and Development Limited
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