ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,413,202, issued on Sept. 9, was assigned to RF360 Singapore Pte. Ltd. (Republic Plaza, Singapore).

"Surface acoustic wave resonator arrangement" was invented by Carsten Potratz (Munich), Peter Selmeier (Maitenbeth, Germany), Thomas Bauer (Munich) and Helmut Klamm (Munich).

According to the abstract* released by the U.S. Patent & Trademark Office: "A surface acoustic wave resonator arrangement comprises a piezoelectric substrate (100) and a surface acoustic wave resonator (110) which includes an interdigital transducer (111,112) disposed on the piezoelectric substrate (100). A trench (130) is disposed within the piezoelectric substrate (100) facing the resonator (110). Trench (130) c...