ALEXANDRIA, Va., March 26 -- United States Patent no. 12,262,640, issued on March 25, was assigned to BIO ON S.P.A. (Turin, Italy).

"Piezoelectric device comprising a membrane comprising fibres of a polyhydroxyalkanoate" was invented by Paolo Saettone (San Giorgio di Piano, Italy), Gianluca Generali (San Giorgio di Piano, Italy), Luana Persano (Cavallino, Italy), Andrea Camposeo (Cavallino, Italy), Dario Pisignano (Cavallino, Italy), Mario Cifelli (San Giorgio di Piano, Italy), Ilaria Monaco (San Giorgio di Piano, Italy), Mirko Maturi (Bologna, Italy) and Mauro Comes Franchini (San Giorgio di Piano, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "A piezoelectric device includes a membrane having fibres ...