ALEXANDRIA, Va., June 10 -- United States Patent no. 12,291,934, issued on May 6, was assigned to EQUINOR ENERGY AS (Stavanger, Norway).
"Actively controlled bailer" was invented by Rune Godoy (Sandnes, Norway), Bard Marius Johansen (Ranheim, Norway), Morten Eidem (Trondheim, Norway) and Gjermund Grimsbo (Trondheim, Norway).
According to the abstract* released by the U.S. Patent & Trademark Office: "A container device for transporting and releasing a plugging material into a well includes a longitudinal chamber for containing the plugging material, the chamber including a tubular wall extending in a longitudinal direction and at least one opening for releasing the plugging material from the chamber; a lower seal extending across the openi...