ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,846, issued on Sept. 23, was assigned to TechnipFMC Norge AS (Kongsberg, Norway).

"System and method for barrier testing" was invented by Sigurd Moe (Kongsberg, Norway) and Piotr Siebyla (Kongsberg, Norway).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system and methods for barrier testing of a X-mas tree production system. The X-mas tree comprises a fluid line between a set of two barrier valves, one of the barrier valves of the set of two barrier valves being an upstream barrier valve closer to a reservoir and the other barrier valve being a downstream barrier valve closer to an environment. The system provides fluid at different test pressure...