Patents by Inventor Laurence Ann Washington

Laurence Ann Washington 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).

  • Apparatus and methods for qualifying compositions
    Patent number: 9664666
    Abstract: A test apparatus for qualifying compositions used to reduce scale deposition in fluid, e.g., wax deposition in crude oil, is disclosed. The test apparatus includes a first reservoir capable of holding a first fluid, and a second rotatable reservoir disposed within the first reservoir, the second reservoir capable of holding a second fluid. The apparatus includes a fluid inlet through which the second fluid enters the second reservoir, and a fluid outlet through which the second fluid exits the second reservoir, wherein a bottom surface of the second rotatable reservoir is configured to be at least partially submerged in the first fluid so that precipitate from the first fluid can be deposited thereon.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: May 30, 2017
    Assignee: Chevron U.S.A. Inc.
    Inventors: David Michael Lavenson, Ramachandran Venkatesan, Lee David Rhyne, Laurence Ann Washington
  • Apparatus and Methods For Qualifying Compositions
    Publication number: 20150127315
    Abstract: A test apparatus for qualifying compositions used to reduce scale deposition in fluid, e.g., wax deposition in crude oil, is disclosed. The test apparatus includes a first reservoir capable of holding a first fluid, and a second rotatable reservoir disposed within the first reservoir, the second reservoir capable of holding a second fluid. The apparatus includes a fluid inlet through which the second fluid enters the second reservoir, and a fluid outlet through which the second fluid exits the second reservoir, wherein a bottom surface of the second rotatable reservoir is configured to be at least partially submerged in the first fluid so that precipitate from the first fluid can be deposited thereon.
    Type: Application
    Filed: November 5, 2014
    Publication date: May 7, 2015
    Applicant: Chevron U.S.A. Inc.
    Inventors: David Michael Lavenson, Ramachandran Venkatesan, Lee David Rhyne, Laurence Ann Washington