ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,775,255, issued on Oct. 27, was assigned to Amazon Technologies Inc. (Seattle).

"Interoperability of secondary-device hubs" was invented by Eric Peter Raeber (Redwood City, Calif.), Robert Franklin Ebert (Los Altos Hills, Calif.), Adam Barry Fineberg (Saratoga, Calif.), Mark Sander Urbanus (San Jose, Calif.), Miroslav Ristic (San Jose, Calif.) and Maxim Spivak (San Jose, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Traditional home-automation systems utilize a single hub for controlling secondary devices within a home. The techniques described herein, meanwhile, utilize multiple hubs within the environment and/or located remotely from the envir...