Patents by Inventor Marion Ash

Marion Ash 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).

  • Oil in water analyzer
    Patent number: 8817241
    Abstract: An oil in water analyzer for measuring the concentration of hydrocarbons in an effluent stream. The oil in water analyzer has a valve system for acquiring a sample from an effluent stream. An extraction device is used for mixing a known volume of a solvent and the sample to produce a hydrocarbon/solvent mixture. A second valve is used for transporting the hydrocarbon/solvent mixture to a spectroscopic cell. It is at the spectroscopic cell where the concentration of hydrocarbons in the hydrocarbon/solvent mixture is evaluated.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: August 26, 2014
    Assignee: Phillips 66 Company
    Inventors: Christopher J. LaFrancois, James F. Stewart, Gregory C. Allred, Marion Ash