ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,392,215, issued on Aug. 19, was assigned to G&H Diversified Manufacturing LP (Houston).

"Hybrid dissolvable plug with improved drillability" was invented by Frank Duran (Houston), Timmothy Lee (Tomball, Texas), Manuel Morales (Houston), Ryan Ward (Tomball, Texas) and Steven Zakharia (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "A frac plug is disclosed that is used for isolating a lower portion of a wellbore from an upper portion to enable a fracking process on newly created perforations in casing or liner pipe where the frac plug is particularly designed rapid drill out after all the fracking operations have been completed. The frac plug incl...