ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,485, issued on Nov. 18, was assigned to Pig Sweep LLC (Kilgore, Texas).
"Method of pretreating a pipeline or apparatus" was invented by James A. Allred Jr. (Alba, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of pretreating a pipeline or apparatus is carried out by selecting a colloidal particle dispersion having inorganic nanoparticles with an average particle size from 500 nm or less that exhibit properties of Brownian motion. Surfaces of a pipeline or apparatus are contacted with a treatment composition comprising the colloidal particle dispersion. The colloidal particles of the treatment composition are allowed to adhere the surf...