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.

Date of Patent:
Oct. 23, 2018

Filed:

May. 09, 2017
Applicant:

Johnson Matthey Public Limited Company, London, GB;

Inventors:

David Stubbs, Cleveland, GB;

Duncan William John McCallien, County Durham, GB;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10L 1/00 (2006.01); C10L 1/20 (2006.01); C10L 1/16 (2006.01);
U.S. Cl.
CPC ...
C10L 1/003 (2013.01); C10L 1/16 (2013.01); C10L 1/201 (2013.01); C10L 1/202 (2013.01); C10L 2230/16 (2013.01);
Abstract

Method of marking a hydrocarbon liquid includes adding to the liquid, a tracer compound of Formula I or II: wherein at least one of R-Rin Formula I and at least one of R-Rin Formula II is selected from:


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