ALEXANDRIA, Va., June 16 -- United States Patent no. 12,656,028, issued on June 16, was assigned to Tyco Fire & Security GmbH (Neuhausen am Rheinfall, Switzerland).

"System and method for operating a compressor of an energy efficient heat pump" was invented by Ewin Ramster Melwin (Panvel, India), Pushpak Doiphode (Thane, India), Narendra Madhukar Japtap (Pune, India), Tejas Mahendra (Pune, India), Rahul Salunke (Aurangabad, India), Naveen Ramanagouda Patil (Navi-Mumbai, India) and Jeremy Ryan Smith (Park City, Kan.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An energy efficient heat pump includes a variable capacity compressor and a controller communicatively coupled to the variable capacity compressor. T...