Patent · US Active

Oligoglyercol fatty acid ester additives for water-based drilling fluids

US8148305B2 · kind B2 · utility

18Cited by

27References

12Claims

0Family size

Assignee

Emery Oleochemicals GmbH · DE

Inventors

Alfred Westfechtel · Hilden, DE
Diana Maker · Mettmann, DE
Heinz-Joachim Muller · Burgkirchen an der Alz, DE

Key dates

Filing date	Sep 12, 2008
Grant date	Apr 3, 2012
Priority date	—
Expiry date	Nov 4, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S507/904
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The use of oligoglycerol fatty acid esters, prepared from

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.