US Patent Issued to Ernst-B. Johansen AS on Sept. 15 for "Heave compensator enabling active heave counteraction" (Norwegian Inventors)

ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,735,302, issued on Sept. 15, was assigned to Ernst-B. Johansen AS (Stathelle, Norway).

"Heave compensator enabling active heave counteraction" was invented by Sondre Vagsland Gonsholt (Skien, Norway), Espen Boseth Johansen (Stathelle, Norway) and Kristian Helland (Stathelle, Norway).

According to the abstract* released by the U.S. Patent & Trademark Office: "A heave compensator includes a main hydraulic cylinder including a first connection device located at an upper end of the main hydraulic cylinder and a first piston having a piston rod. The interior of the main hydraulic cylinder is divided by the first piston into an upper first chamber and a lower second chamber filled with hy...