ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,427,055, issued on Sept. 30, was assigned to ZOLL Circulation Inc. (San Jose, Calif.).

"Patient heat exchange system with two and only two fluid loops" was invented by Jeremy Thomas Dabrowiak (Redwood City, Calif.), Craig Wendell Pendry (Milpitas, Calif.) and Christoph Matthias Pistor (Santa Cruz, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A heat exchange system for exchanging heat with working fluid from an intravascular heat exchange catheter or an external heat exchange pad includes a working fluid that circulates between the catheter or pad and a fluid cassette, and a refrigerant system that flows against the outer sides of cold plates b...