ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,442,264, issued on Oct. 14, was assigned to FALLBACK LLC (Tulsa, Okla.).
"Borehole sand catcher" was invented by Philip Head (Sunningdale, Great Britain) and Lawrence Hugh Burleigh (Tulsa, Okla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A downhole apparatus for collecting solids fallback in the tubing of an oil producing borehole comprises two or more baskets to collect the solids fall back, each basket partially occupying a portion of the inner cross section of the tubing, leaving a portion of the inner cross section of the tubing having an unrestricted flow path. The baskets when considered in plan view along longitudinal axis of the tubing are d...