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.)
BASF Personal Care and Nutrition GmbH
Halliburton Energy Services Inc
Original Assignee
Baroid Drilling Fluids Inc
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
Priority claimed from DE3842703Aexternal-prioritypatent/DE3842703A1/en
Application filed by Baroid Drilling Fluids IncfiledCriticalBaroid Drilling Fluids Inc
Publication of AU4954990ApublicationCriticalpatent/AU4954990A/en
Assigned to BAROID DRILLING FLUIDS INC.reassignmentBAROID DRILLING FLUIDS INC.Alteration of Name(s) of Applicant(s) under S113Assignors: BAROID LIMITED, HENKEL KOMMANDITGESELLSCHAFT AUF AKTIEN
Publication of AU634207B2publicationCriticalpatent/AU634207B2/en
Application grantedgrantedCritical
Publication of AU634207CpublicationCriticalpatent/AU634207C/en
Assigned to COGNIS DEUTSCHLAND GMBH, HALLIBURTON ENERGY SERVICES, INC.reassignmentCOGNIS DEUTSCHLAND GMBHAlteration of Name(s) in Register under S187Assignors: BAROID DRILLING FLUIDS INC.
Assigned to HALLIBURTON ENERGY SERVICES, INC., COGNIS DEUTSCHLAND GMBH & CO. KGreassignmentHALLIBURTON ENERGY SERVICES, INC.Alteration of Name(s) in Register under S187Assignors: COGNIS DEUTSCHLAND GMBH, HALLIBURTON ENERGY SERVICES, INC.
AU49549/90A1988-12-191989-12-11The use of selected ester oils in drilling fluids, particularly for the offshore development of oil and gas sources (II)
ExpiredAU634207C
(en)