ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,803, issued on Oct. 28, was assigned to ONESUBSEA AS (Lysaker, Norway).
"Subsea wellhead foundation" was invented by Brynjulf Spalder (Asker, Norway) and Rolf Barfod Schueller (Droebak, Norway).
According to the abstract* released by the U.S. Patent & Trademark Office: "A subsea foundation for installation on a sea floor. The subsea foundation includes a receptacle which receives a wellhead housing, and a conductor pipe which is arranged to extend from the receptacle and which receives a well pipe therethrough. The conductor pipe has a first section and a second section. The first section of the conductor pipe has a first end and a second end. The first section is connected to th...