Patents by Inventor Emilie Dressaire

Emilie Dressaire 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).

  • Spectroscopic pH measurement using optimized mixtures of reagents to extend measurement range
    Patent number: 7993604
    Abstract: An indicator mixture that allows pH measurement over a broader range of pH or to a higher accuracy than available using conventional spectroscopic techniques. In particular, the mixture of the present invention is comprised of two or more reagents such that when combined, the reagent mixture is capable of either detecting: (1) a pH range broader or more accurate than that the reagents individually, or (2) pH more accurately than the reagents individually. Also disclosed are methods of making and using the mixture.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: August 9, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Bhavani Raghuraman, Gale H. Gustavson, Emilie Dressaire, Oleg Zhdaneev, Ronald Van Hal, Oliver Mullins, Philippe Salamitou
  • SPECTROSCOPIC PH MEASUREMENT USING OPTIMIZED MIXTURES OF REAGENTS TO EXTEND MEASUREMENT RANGE
    Publication number: 20090084175
    Abstract: An indicator mixture that allows pH measurement over a broader range of pH or to a higher accuracy than available using conventional spectroscopic techniques. In particular, the mixture of the present invention is comprised of two or more reagents such that when combined, the reagent mixture is capable of either detecting: (1) a pH range broader or more accurate than that the reagents individually, or (2) pH more accurately than the reagents individually. Also disclosed are methods of making and using the mixture.
    Type: Application
    Filed: August 29, 2008
    Publication date: April 2, 2009
    Applicant: Schlumberger Technology Corporation
    Inventors: Bhavani Raghuraman, Gale H. Gustavson, Emilie Dressaire, Oleg Zhdaneev, Ronald Van Hal, Oliver Mullins, Philippe Salamitou
  • Spetroscopic pH measurement using optimized mixtures of reagents to extend measurement range
    Patent number: 7432109
    Abstract: An indicator mixture that allows pH measurement over a broader range of pH or to a higher accuracy than available using conventional spectroscopic techniques. In particular, the mixture of the present invention is comprised of two or more reagents such that when combined, the reagent mixture is capable of either detecting: (1) a pH range broader or more accurate than that the reagents individually, or (2) pH more accurately than the reagents individually. Also disclosed are methods of making and using the mixture.
    Type: Grant
    Filed: February 19, 2004
    Date of Patent: October 7, 2008
    Assignee: Schlumberger Technology Corporation
    Inventors: Bhavani Raghuraman, Gale H. Gustavson, Emilie Dressaire, Oleg Zhdaneev, Ronald Van Hal, Oliver Mullins, Philippe Salamitou
  • Spectroscopic pH measurement using optimized mixtures of reagents to extend measurement range
    Publication number: 20040219064
    Abstract: An indicator mixture that allows pH measurement over a broader range of pH or to a higher accuracy than available using conventional spectroscopic techniques. In particular, the mixture of the present invention is comprised of two or more reagents such that when combined, the reagent mixture is capable of either detecting: (1) a pH range broader or more accurate than that the reagents individually, or (2) pH more accurately than the reagents individually. Also disclosed are methods of making and using the mixture.
    Type: Application
    Filed: February 19, 2004
    Publication date: November 4, 2004
    Applicant: SCHLUMBER TECHNOLOGY CORPORATION
    Inventors: Bhavani Raghuraman, Gale H. Gustavson, Emilie Dressaire, Oleg Zhdaneev, Ronald Van Hal, Oliver Mullins, Philippe Salamitou