ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,729,590, issued on Sept. 8, was assigned to Sentinel Solutions LLC (Holstville, N.Y.).

"System and method for responsively injecting chemistries directly into a downhole slurry" was invented by Charles Vincent Skillman Jr. (Fort Pierce, Fla.) and Frank John Christy (Bohemia, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system and method that provides an automated process for the trenchless construction marketspace. The system including a containerized unit consisting of a plurality of holding tanks, fluid agitators, hootenanny mixers, progressive cavity pumps and pneumatic valving. The operator of the system is capable of mixing costly polymer ...