ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,877, issued on May 27, was assigned to VULCAN COMPLETION PRODUCTS UK Ltd. (Aberdeen, Great Britain).

"Centraliser" was invented by Ian Kirk (Aberdeen, Great Britain), Andrew Kirk (Aberdeen, Great Britain) and Nathan Kirk (Aberdeen, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A centraliser (10; 110) for centralising tubing (T) in a bore (B) comprises a body (12; 112), one or more blades (14; 114) extending radially outwards from the body (12; 112). One or more of the blades (14; 114) receives a blade standoff (20; 120) which is disposed on and extends radially outwards from the blade (14; 114) with which it is associated. The blade s...