ALEXANDRIA, Va., June 4 -- United States Patent no. 12,320,239, issued on June 3, was assigned to EQUINOR ENERGY AS (Stavanger, Norway).
"Inflow control device" was invented by Ivar Kjosnes (Trondheim, Norway), Geir Elseth (Porsgrunn, Norway) and Martin Halvorsen (Mathopen, Norway).
According to the abstract* released by the U.S. Patent & Trademark Office: "An inflow control device configured to switch between an open and a closed state, includes: an inlet; an outlet; a housing; a first body and second body arranged within the housing. The second body is moveable relative to the first body. In an electrically energised state, the first body is operative to magnetically attract or repel the second body. In the open state, the first and sec...