ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,442,278, issued on Oct. 14, was assigned to XConnect LLC (Denver).
"Tandem sub for a perforating gun assembly" was invented by Shelby L. Sullivan (Minot, N.D.) and Joshua M. Scott (Katy, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A tandem sub for a perforating gun assembly. The perforating gun assembly is used in a wellbore completion operation. The tandem sub first comprises a tubular body. The tubular body has a first end, a second end opposite the first end, and connection threads residing at each of the first and second ends. The tubular body has an internal bore, and tapered shoulders residing along the internal bore proximate each end. E...