ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,392,229, issued on Aug. 19, was assigned to LIBERTY LIFT SOLUTIONS LLC (Houston).

"Robust gas lift valve suitable for use in harsh environments" was invented by Daniel Ryan Murski (Victoria, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A gas lift valve including a body with interior charging chamber; a housing defining a bore in fluid communication with the charging chamber; a plug positioned within the bore and an a first O-ring forming a seal between an external surface of the plug and an interior surface of the bore, a crush washer is positioned between the plug and a surface of the housing; and a cap positioned with respect to the housing su...