Patents by Inventor Patrick Vongphoutone

Patrick Vongphoutone 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).

  • Hydrocarbon swelling particles for wellbore cementing
    Patent number: 12286586
    Abstract: Hydrocarbon swelling particles for wellbore cementing include a crosslinked polymer comprising vinyl aromatic monomer and/or (meth)acrylic monomer.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: April 29, 2025
    Assignee: SYNTHOMER INC.
    Inventors: Juergen Heidlas, Bertrand Guichard, Patrick Vongphoutone, Douglas J. Harrison, AJ Marino
  • HYDROCARBON SWELLING PARTICLES FOR WELLBORE CEMENTING
    Publication number: 20220363973
    Abstract: Hydrocarbon swelling particles for wellbore cementing include a crosslinked polymer comprising vinyl aromatic monomer and/or (meth)acrylic monomer.
    Type: Application
    Filed: June 12, 2020
    Publication date: November 17, 2022
    Applicant: OMNOVA Solutions
    Inventors: Juergen Heidlas, Bertrand Guichard, Patrick Vongphoutone, Douglas J. Harrison, AJ Marino