ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,484, issued on March 18, was assigned to United States of America as represented by the Administrator of NASA (Washington).

"Large format-fractional thermal runaway calorimeter" was invented by Steven L. Rickman (Houston), William Q. Walker (Houston), John J. Darst (Houston), Damien T. Calderon (Houston), Richard A. Hagen (Houston), Ryan P. Brown (Houston), Gary A. Bayles (Crane, Ind.), Peter J. Hughes (Houston) and David Petrushenko (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system for measuring a heat response of a battery cell includes a cell chamber configured to receive the battery cell therein. The cell chamber is configured to...