ALEXANDRIA, Va., May 26 -- United States Patent no. 12,636,939, issued on May 26, was assigned to THERMO KING LLC (Minneapolis).

"Simultaneous vapor and liquid injection" was invented by Lars I. Sjoholm (Burnsville, Minn.), Gurudath Nayak Hebri (Karnataka, India) and Alexander Schmig (La Crosse, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods for simultaneous vapor and liquid injection for a transport climate control system are provided. The system includes a compressor, a condenser having a condensing unit and a sub-cooling unit, a receiver, an economizer having a vapor outlet and a liquid outlet, a controller, and a flow control device. The receiver is disposed downstream of the con...