Patents by Inventor Robert J. Tillotson

Robert J. Tillotson 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).

  • Use of polyoxypropylene and polyoxyethylene terpene compounds in emulsion polymerization
    Patent number: 7501470
    Abstract: The invention relates to the use, in emulsion polymerization, of at least a compound derived from a terpene and comprising a number of oxypropylene units ranging between 0 to 20, and a number of oxyethylene units ranging between 2 to 80.
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: March 10, 2009
    Assignee: Rhodia Inc.
    Inventors: Herve Adam, Jon D. Kiplinger, Robert J. Tillotson, Jean-Luc Joye, Hui Shirley Yang
  • Hydraulic fracturing fluid comprising a block copolymer containing at least one water-soluble block and one hydrophobic block
    Patent number: 6579947
    Abstract: The invention relates to a hydraulic fracturing fluid comprising an aqueous liquid, and a block copolymer containing at least one water-soluble block and one hydrophobic block and being particularly suited for use in high temperature ranges, greater than 180° C.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: June 17, 2003
    Assignee: Rhodia Chimie
    Inventors: Caroline Heitz, Mathieu Joanicot, Robert J. Tillotson
  • Hydraulic fracturing fluid comprising a block copolymer containing at least one water-soluble block and one hydrophobic block
    Publication number: 20020161087
    Abstract: The invention relates to a hydraulic fracturing fluid comprising an aqueous liquid, and a block copolymer containing at least one water-soluble block and one hydrophobic block and being particularly suited for use in high temperature ranges, greater than 180° C.
    Type: Application
    Filed: February 20, 2001
    Publication date: October 31, 2002
    Inventors: Caroline Heitz, Mathieu Joanicot, Robert J. Tillotson