ALEXANDRIA, Va., May 19 -- United States Patent no. 12,633,427, issued on May 19, was assigned to LANG FAMILY TRUST (Leawood, Kan.).

"Computer apparatus for monitoring and verifying nuclear and fossil power plant heat losses based on the revised NCV method" was invented by Fred Donald Lang (Salt Spring Island, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "This invention discloses a computer apparatus whose instructions describe a process which analyzes system entropy flows, irreversible losses and Carnot reversibilities associated with heat exchangers used in thermal engines. Irreversible losses include those from shell and tube heat exchangers, and those from the shell-side of heat exchangers such a...