ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,845, issued on Oct. 21.
"Apparatus with fluid powered drive assemblies and method of fabrication" was invented by Henry Eugene Rogers (Owasso, Okla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A downhole apparatus with fluid powered drive assemblies for driving a cutting structure. The apparatus includes a power assembly body to couple to a casing string and the cutting structure, the body forming a central flow bore and fluid conduits disposed between an outer wall and an inner wall, each conduit having an inlet and outlet. A lower drive body couples the power assembly body to the cutting structure. Each of the fluid powered drive assemblies inc...