ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,939, issued on Feb. 3, was assigned to Drexel University (Philadelphia).

"Piezoelectric plate sensor and uses thereof" was invented by Wan Y. Shih (Bryn Mawr, Pa.), Wei Wu (Philadelphia), Wei-Heng Shih (Bryn Mawr, Pa.), Mehmet Cagri Soylu (Melikgazi, Turkey), Haitao Guo (Carmel, Ind.), Suresh G. Joshi (Secane, Pa.), Ceyhun Ekrim Kirimli (Thunder Bay, Canada) and Ying-Hsiu Su (Audubon, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A piezoelectric plate sensor comprising a piezoelectric layer; two electrodes; and an insulation layer. The insulation layer is produced by soaking the piezoelectric layer and two electrodes in a mercaptopropyltrimethox...