ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,209,217, issued on Jan. 28, was assigned to The Lubrizol Corp. (Wickliffe, Ohio).
"Carbon dioxide viscosification" was invented by Binbin Guo (Sagamore Hills, Ohio) and Abbas Firoozabadi (Los Altos, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a composition including fluid carbon dioxide and a polyolefin thickener, wherein the polyolefin thickener includes a polymer of one or more olefin monomers having 8 or more carbon atoms, wherein at least 5 mol percent of the olefin monomers have 12 or more carbon atoms. Associated methods are also provided."
The patent was filed on April 19, 2024, under Application No. 18/640,037.
*For furth...