Patents by Inventor Catherine Semien

Catherine Semien 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).

  • Internal olefin sulfonate composition
    Patent number: 10184076
    Abstract: The present invention provides an internal olefin sulfonate composition, comprising water and an internal olefin sulfonate mixture having an average carbon number of at least 20, wherein the internal olefin sulfonate mixture comprises hydroxy sulfonates and alkene sulfonates in a weight ratio of hydroxy sulfonates to alkene sulfonates of at least 3.25. The invention further provides a method of treating a crude oil containing formation.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: January 22, 2019
    Assignee: SHELL OIL COMPANY
    Inventors: Julian Richard Barnes, James Laurel Buechele, Hendrik Dirkzwager, Willem Johan Louis Genuit, Jeremiah Michael Purcell, Catherine Semien, Carmen Geraldine Reznik
  • INTERNAL OLEFIN SULFONATE COMPOSTION
    Publication number: 20160017207
    Abstract: The present invention provides an internal olefin sulfonate composition, comprising water and an internal olefin sulfonate mixture having an average carbon number of at least 20, wherein the internal olefin sulfonate mixture comprises hydroxy sulfonates and alkene sulfonates in a weight ratio of hydroxy sulfonates to alkene sulfonates of at least 3.25. The invention further provides a method of treating a crude oil containing formation.
    Type: Application
    Filed: March 4, 2014
    Publication date: January 21, 2016
    Applicant: SHELL OIL COMPANY
    Inventors: Julian Richard BARNES, James Laurel BUECHELE, Hendrik DIRKZWAGER, Willem Johan Louis GENUIT, Jeremiah Michael PURCELL, Catherine SEMIEN, Carmen Geraldine REZNIK
  • LAUNDRY DETERGENT COMPOSITION AND METHOD OF MAKING THEREOF
    Publication number: 20150166937
    Abstract: A mixture of sulfates is made by dimerizing one or more even numbered alpha olefins to produce one or more vinylidenes; hydroformylating the vinylidene(s) to produce a mixture of alcohols; and sulfating the mixture of alcohols to form alcohol sulfates. The sulfates are useful in laundry detergents and other surfactants.
    Type: Application
    Filed: May 24, 2013
    Publication date: June 18, 2015
    Inventors: Robert Hardy Ellison, Elizabeth Elaine Endler, Carol Jean Klem, Abraham Robert De Kraker, Sharla Nance Papitto, Catherine Semien, Paul Theodore Sharko