US Patent Issued to SYNTHOMER on April 29 for "Hydrocarbon swelling particles for wellbore cementing" (French, American Inventors)

ALEXANDRIA, Va., June 9 -- United States Patent no. 12,286,586, issued on April 29, was assigned to SYNTHOMER INC. (Beachwood, Ohio).

"Hydrocarbon swelling particles for wellbore cementing" was invented by Juergen Heidlas (Houston), Bertrand Guichard (Villecresnes, France), Patrick Vongphoutone (Bussy Saint Georges, France), Douglas J. Harrison (Stafford, Texas) and AJ Marino (Stafford, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "Hydrocarbon swelling particles for wellbore cementing include a crosslinked polymer comprising vinyl aromatic monomer and/or (meth)acrylic monomer."

The patent was filed on June 12, 2020, under Application No. 17/618,540.

*For further information, including images, charts...