ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,470,863, issued on Nov. 11, was assigned to xMEMS Labs Inc. (Santa Clara, Calif.).

"Wearable sound device and method for ventilation and acoustic tuning" was invented by Jemm Yue Liang (Sunnyvale, Calif.) and Robb Zimmerman (Sunnyvale, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A wearable sound device includes a sound outlet, a side opening, an air pulse generating (APG) device, and an exchanger. The exchanger includes a first opening, a second opening, a third opening, and a fourth opening. The first opening and the second opening are on a first side of the exchanger facing a first chamber, and the third opening and the fourth opening are on...