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 PCT/US1991/002886external-prioritypatent/WO1992019348A1/en
Application filed by Conoco Specialty ProdfiledCriticalConoco Specialty Prod
Publication of NO925055D0publicationCriticalpatent/NO925055D0/en
Publication of NO925055LpublicationCriticalpatent/NO925055L/en