The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 22, 2010
Filed:
Jul. 20, 2004
Heinz Mueller, Monheim, DE;
Nadja Herzog, Korschenbroich, DE;
Ansgar Behler, Bottrop, DE;
Jens Hartmann, Bidnija, MT;
Heinz Mueller, Monheim, DE;
Nadja Herzog, Korschenbroich, DE;
Ansgar Behler, Bottrop, DE;
Jens Hartmann, Bidnija, MT;
Emery Oleochemicals GmbH, Dusseldorf, DE;
Abstract
A well servicing composition containing an aqueous phase and an oil phase and an ether carboxylic acid of the formula:RO(CHCHO)(CHCHRO)CH—COOXwherein, R is a saturated or unsaturated, branched or unbranched alkyl or alkenyl group containing 6 to 22 carbon atoms, x is a number from 1 to 20 and y is 0 or a number from 1 to 20, provided that the sum of x and y is at least 1 and at most 25, Ris an alkyl group containing 1 to 4 carbon atoms and X comprises at least one member selected from the group consisting of a hydrogen atom, monovalent cations and polyvalent cations.