ALEXANDRIA, Va., April 7 -- United States Patent no. 12,594,580, issued on April 7, was assigned to University of Windsor (Windsor, Canada).

"Altering and enhancing resonator performances using free to fixed boundary ratio (FFBR) topology" was invented by Haleh Nazemi (LaSalle, Canada) and Arezoo Emadi (Windsor, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "A resonator and/or transducer comprising at least one deflectable membrane, a fixed substrate, and at least one cavity defined between the at least one deflectable membrane and the fixed substrate. A Free to Fixed Boundary Ratio (FFBR) of the deflectable membrane is selected to optimize a characteristic of the resonator and/or transducer, such as ...