ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,466,990, issued on Nov. 11, was assigned to Obsidian Chemical Solutions LLC (Midland, Texas).
"Water-based anionic friction reducer" was invented by John Neufeld (Midland, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A system and method for manufacturing and using a water-based friction reducer. The anionic water-based friction reducer is environmentally friendly. It results in long term stability with no separation or solid sediments. It is also less expensive than oil-based friction reducing liquids. The water-based friction reducing liquid has water, a suspension polymer, an inorganic salt, an amide, and a dispersant. The water-based friction...