ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,413,208, issued on Sept. 9, was assigned to AT&T Intellectual Property I LP (Atlanta).

"Method and apparatus for filtering and amplifying higher power communication signals" was invented by Andy P. Salvador (Bellevue, Wash.), Mikko Juuso (Oulu, Finland), Jani Lyrintzis (Snohomish, Wash.) and Toni Lehtimaki (Oulu, Finland).

According to the abstract* released by the U.S. Patent & Trademark Office: "Aspects of the subject disclosure may include, for example, splitting, by one or more first hybrid couplers, an RF signal obtained from a transmitter or an antenna into a group of RF signals; filtering, by a plurality of SAW filters, the group of RF signals resulting in a group of filtered...