ALEXANDRIA, Va., June 19 -- United States Patent no. 12,333,017, issued on June 17, was assigned to SCHLUMBERGER TECHNOLOGY Corp. (Sugar Land, Texas).

"Indirect diagnosis of multiple fluid mixer unit performance" was invented by Simon Ivar Andersen (Hvidovre, Denmark), Sharath Chandra Mahavadi (Lexington, Mass.), Salim Taoutaou (Clamart, France), Alexander Nebesnyy (Kuala Lumpur, Malaysia) and Jonathan Wun Shiung Chong (Kuala Lumpur, Malaysia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid additive mixing apparatus is provided that has a plurality of chambers containing additives, as well as a system for mixing the additives. One or more additives are mixed with water to form a mixing fluid. The mixi...