US Patent Issued to TYCO FIRE & SECURITY on Feb. 4 for "Energy efficient heat pump systems and methods" (Kansas, Wisconsin Inventors)

ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,215,884, issued on Feb. 4, was assigned to TYCO FIRE & SECURITY GMBH (Neuhausen am Rheinfall, Switzerland).

"Energy efficient heat pump systems and methods" was invented by Andrew Leroy Hjortland (Stoughton, Wis.) and Jeremy Ryan Smith (Park City, Kan.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An energy efficient heat pump for a heating, ventilation, and air conditioning (HVAC) system includes a working fluid circuit and a first conduit of the working fluid circuit, where the first conduit extends between a first heat exchanger and a second heat exchanger of the working fluid circuit. The energy efficient heat pump also includes a compressor dispose...