Karen A Mehlin

US Patent:

8242062, Aug 14, 2012

Filed:

Apr 2, 2007

Appl. No.:

11/695564

Inventors:

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

Assignee:

Authentix, Inc. - Addison TX

International Classification:

C10M 129/00
C10L 1/18
G01N 33/22
G01N 33/26

US Classification:

508110, 508577, 508578, 44300, 44437, 436 27, 436 29, 436 56

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.

US Patent:

20040147413, Jul 29, 2004

Filed:

Jan 29, 2003

Appl. No.:

10/354243

Inventors:

W. Spall - White Rock NM, US
Karen Mehlin - Los Alamos NM, US

International Classification:

C10M133/44
C10L001/22

US Classification:

508/296000, 044/340000

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 product the chemical is being added to. The presence of the chemical is determined by using ion mobility spectroscopy.