ALEXANDRIA, Va., April 9 -- United States Patent no. 12,270,420, issued on April 8, was assigned to Dyson Technology Ltd. (Malmesbury, Great Britain).

"Noise reduction for air flow devices" was invented by Philip Tennison Reilly (Gloucester, Great Britain), Peter Harley (Malmesbury, Great Britain), Christopher Ashley Monk (Royal Wootton Bassett, Great Britain) and Ignacio Justo Perez Pablos (Malmesbury, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A device configured to generate an air flow, the device including: a compressor; an air flow duct arranged to convey a flow of air generated by the compressor; a gas-filled cavity disposed beside the air flow duct; a wall separating the air flow duc...