US Patent Issued to Technische Universitat Dresden, Korperschaft des offentlichen Rechts on May 19 for "Speakers and methods" (German Inventor)

ALEXANDRIA, Va., May 19 -- United States Patent no. 12,634,632, issued on May 19, was assigned to Technische Universitat Dresden, Korperschaft des offentlichen Rechts (Germany).

"Speakers and methods" was invented by Petko Bakardjiev (Dresden, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A speaker and a method are disclosed, where the speaker comprises a rotary actuator comprising a wound laminate. The laminate comprises a first layer and a second layer each comprising or consisting of a dielectric elastomer, a first electrode disposed between the first layer and the second layer in direct contact therewith. The laminate also comprises a second metal layer disposed between and electrically conducti...