ALEXANDRIA, Va., June 17 -- United States Patent no. 12,316,304, issued on May 27, was assigned to RF360 Singapore Pte. Ltd. (Republic Plaza, Singapore).
"Vertically coupled SAW resonators" was invented by Stefan Ammann (Grosskarolinenfeld, Germany), Matthias Pernpeintner (Grafing b. Munchen, Germany), Manuel Hofer (Graz, Austria) and Stefan Leopold Hatzl (Kloech, Austria).
According to the abstract* released by the U.S. Patent & Trademark Office: "Aspects of the disclosure relate to devices, wireless communication apparatuses, methods, and circuitry implementing filters with electroacoustic vertical coupling. One aspect is a filter comprising a piezoelectric substrate having a first piezoelectric surface and a second piezoelectric surfac...