ALEXANDRIA, Va., April 7 -- United States Patent no. 12,594,111, issued on April 7, was assigned to BTG International Ltd. (London).

"High pressure, low temperature coupling" was invented by Jason Sprain (Shoreview, Minn.), Mark Timothy Johnson (Mounds View, Minn.), Maciej Wojciech Misiak (Eden Prairie, Minn.) and Andrew Kevin Zachman (St. Michael, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein are devices, systems, and method for multi-stage, reusable coupling. Such a coupler can have a formable flow path and can include a first sealing engagement and a second sealing engagement. The first sealing engagement can be configured to provide a first seal of the coupler at a first temperatu...