ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,787,645, issued on Nov. 3, was assigned to NaMLab gGmbH (Dresden, Germany).

"Switchable nonvolatile pyroelectric device" was invented by Patrick Dominic Lomenzo (Dresden, Germany) and Uwe Schroder (Dresden, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "Described are thermal-to-electrical signal transducers including band-gap materials with a pinched or double hysteresis loop (DHL) charge-voltage characteristic in a pyroelectric device that have electrically switchable active (on) and inactive (off) pyroelectric states. DHL materials include field induced ferroelectrics (FFE), Kittel-type antiferroelectric (KAFE), defect-biased ferroelectric (DBF...