Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Weatherford Technology Holdings LLC
Original Assignee
Weatherford/Lamb, Inc.
Bernd Reinholdt
Jorg Lorenz
Arnold Stokka
Weatherford Technology Holdings, Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Weatherford/Lamb, Inc., Bernd Reinholdt, Jorg Lorenz, Arnold Stokka, Weatherford Technology Holdings, LlcfiledCriticalWeatherford/Lamb, Inc.
Priority claimed from PCT/GB1997/002249external-prioritypatent/WO1998007953A1/fr
Publication of CA2257523A1publicationCriticalpatent/CA2257523A1/fr
Application grantedgrantedCritical
Publication of CA2257523CpublicationCriticalpatent/CA2257523C/fr