Patents by Inventor Karen Mehlin

Karen Mehlin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • IMS detection of chemical markers in petroleum products
    Patent number: 8242062
    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.
    Type: Grant
    Filed: April 2, 2007
    Date of Patent: August 14, 2012
    Assignee: Authentix, Inc.
    Inventors: W. Dale Spall, Karen Mehlin, Gary Elceman, Hartwig Schmidt
  • IMS DETECTION OF CHEMICAL MARKERS IN PETROLEUM PRODUCTS
    Publication number: 20070212785
    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.
    Type: Application
    Filed: April 2, 2007
    Publication date: September 13, 2007
    Applicant: AUTHENTIX, INC.
    Inventors: W. Spall, Karen Mehlin, Gary Eiceman, Hartwig Schmidt
  • IMS detection of chemical markers in petroleum products
    Patent number: 7208451
    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.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: April 24, 2007
    Assignee: Authentic Inc.
    Inventors: W. Dale Spall, Karen Mehlin
  • IMS detection of chemical markers in petroleum products
    Publication number: 20040147413
    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.
    Type: Application
    Filed: January 29, 2003
    Publication date: July 29, 2004
    Inventors: W. Dale Spall, Karen Mehlin