ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,416,229, issued on Sept. 16, was assigned to Halliburton Energy Services Inc. (Houston).

"10,000-psi multilateral fracking system with large internal diameters for unconventional market" was invented by David Joe Steele (Carrollton, Texas) and Matthew James Kelsey (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a frac window system, a well system, and a wellbore stimulation method. The frac window system, in one aspect, includes an elongated tubular having a first end and a second end with an opening defined in a wall of the elongated tubular between the first end and the second end, the wall having an inner surface and an outer sur...