Patents by Inventor Nicolas J. Leflemme

Nicolas J. Leflemme 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).

  • SELF-INVERTING POLYMER EMULSIONS
    Publication number: 20200308390
    Abstract: A polymer composition has been developed that provides low viscosity oil-in-water polymer emulsions that release the polymer in the emulsion at a faster rate and without an additional surfactant when the emulsion is added to a hydrocarbon stream. Use of a temperature-sensitive emulsifying surfactant facilitates inversion of the oil-in-water polymer emulsion when applied to a hydrocarbon composition at a temperature sufficiently high to destabilize the emulsion. These compositions are particularly useful as drag reducers for delivery to a subsea flowline via an umbilical line.
    Type: Application
    Filed: March 30, 2020
    Publication date: October 1, 2020
    Inventors: Tri T. Phan, Kerry Charles Brinkman, Xiaojin Harry Li, Nicolas J. Leflemme, Jeremy Moloney, Michael Cash