ALEXANDRIA, Va., June 4 -- United States Patent no. 12,321,662, issued on June 3, was assigned to Sonos Inc. (Goleta, Calif.).

"Synchronizing playback of audio information received from other networks" was invented by Cameron Ellison Korb (Boston), Nicholas Maniskas (Somerville, Mass.), Ted Lin (Cambridge, Mass.), Meng Wang (Woburn, Mass.) and Richard John Bannon (Seattle).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein are playback devices, groups of playback devices, and methods of operating playback devices and groupings thereof to cause the playback devices in a group of playback devices communicating over a first network to play audio content received via second network."

The patent was ...