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:
Jul. 28, 2015
Filed:
Dec. 04, 2012
Duncan William John Mccallien, Durham, GB;
Ian Stuart Edworthy, Tyne and Wear, GB;
Vincent Brian Croud, South Yorkshire, GB;
Duncan William John McCallien, Durham, GB;
Ian Stuart Edworthy, Tyne and Wear, GB;
Vincent Brian Croud, South Yorkshire, GB;
JOHNSON MATTHEY PUBLIC LIMITED COMPANY, London, GB;
Abstract
Method of marking a hydrocarbon liquid includes adding to the liquid a tracer compound of Formula I: wherein, each X is independently hydrogen, bromine, fluorine, a halogenated alkyl group, a linear, branched or cyclic C1-C20 alkyl group, or a phenyl group substituted with one or more halogen atoms, an alkyl group or a halogenated alkyl group; each Y is independently bromine, fluorine, a halogenated alkyl group, a branched or cyclic C1-C9 alkyl group, or a phenyl group substituted with at least one alkyl and/or a halogenated alkyl group; Z is a phenyl group substituted with one or more halogen atoms, an aliphatic or halogenated aliphatic group, a halogenated alkyl group or a linear, branched or cyclic C1-C20 alkyl group, provided that when each Y is a fluorine atom, Z is not a linear or branched C1-C20 alkyl group.