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:
Aug. 14, 2012
Filed:
Apr. 02, 2007
W. Dale Spall, Los Alamos, NM (US);
Karen Mehlin, Los Alamos, NM (US);
Gary Elceman, Las Cruces, NM (US);
Hartwig Schmidt, Las Cruces, NM (US);
W. Dale Spall, Los Alamos, NM (US);
Karen Mehlin, Los Alamos, NM (US);
Gary Elceman, Las Cruces, NM (US);
Hartwig Schmidt, Las Cruces, NM (US);
Authentix, Inc., Addison, TX (US);
Abstract
A method and composition for identifying chemically tagged petroleum products can be achieved by adding one or more chemicals to a selected petroleum product wherein the chemical is immune to extraction from the petroleum product by conventional inexpensive absorbents, cannot be removed by extraction with acids, bases, or immiscible solvents, cannot be easily oxidized, reduced or reacted with common agents, is difficult to disguise by masking with other agents, has a low polarity, and has a boiling point in the range of the petroleum products the chemical is being added to. The presence of the chemical is determined by using ion mobility spectroscopy.