Patents by Inventor Barbara R. Coughlin

Barbara R. Coughlin 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).

  • Method for process control
    Patent number: 5110744
    Abstract: Improved process control is achieved in processes for which it is useful to control variable process conditions based upon on-line determinations of the concentration of weak acids and weak bases, or their soluble salts, in liquid streams of the processes. For example, amine system energy savings and waste treatment system control improvements are taught.
    Type: Grant
    Filed: November 16, 1989
    Date of Patent: May 5, 1992
    Assignee: Amoco Corporation
    Inventors: Ernest H. Baughman, Barbara R. Coughlin
  • Method for detecting the presence and concentration of weak acids and bases in liquids
    Patent number: 5102805
    Abstract: The concentration of weak acid and weak base constituents, or their soluble salts, in liquids is determined by passing succeeding samples of constant volume to a separation zone wherein target constituents are volatilized by reagents, then volatilized analytes are stripped from the liquid matrix and carried to a detection zone at a constant flow rate, wherein signals proportional to the variations in individual target analyte concentrations between succeeding samples are generated.
    Type: Grant
    Filed: November 16, 1989
    Date of Patent: April 7, 1992
    Assignee: Amoco Corporation
    Inventors: Ernest H. Baughman, Karl G. Schick, Barbara R. Coughlin