ALEXANDRIA, Va., July 9 -- United States Patent no. 12,352,139, issued on July 8, was assigned to Swellfix UK Ltd. (Aberdeenshire, Great Britain).
"Screen apparatus and method" was invented by Eilidh Jean McKay (Aberdeen, Great Britain) and Duncan Alexander Harper (Alford, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A downhole expandable apparatus for restricting ingress of solids in a wellbore comprises a base pipe, a fluid permeable expandable foam material mounted on the base pipe configurable between a non-expanded and an expanded configuration, and a retractable sleeve. The retractable sleeve is moveable between a first configuration in which the retractable sleeve retains the expandabl...