ALEXANDRIA, Va., April 9 -- United States Patent no. 12,270,555, issued on April 8, was assigned to BEST TECHNOLOGIES INC. (Reno, Nev.).

"HVAC devices with improved radiax design and functionality" was invented by John C Karamanos (San Jose, Calif.) and Herbert Willke (New York).

According to the abstract* released by the U.S. Patent & Trademark Office: "Architectures and techniques are presented that can facilitate improved design and function of certain heating, ventilation, and air conditioning (HVAC) devices. Architectures directed to an improved evase device can be designed with rounded corners that can facilitate, e.g., mitigation of reverse flow that traditionally grows back from corners of a transition from an axial fan to a recta...