ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,528,988, issued on Jan. 20, was assigned to Merck Patent GmbH (Germany).

"Liquid crystal medium" was invented by Constanze Brocke (Darmstadt, Germany), Dagmar Klass (Darmstadt, Germany), Matthias Jost (Darmstadt, Germany) and Amir Hossain Parham (Darmstadt, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A compound of formula AN a liquid crystal material comprising a compound of formula AN, and high-frequency components comprising these media, especially microwave components for high-frequency devices, such as devices for shifting the phase of microwaves, tuneable filters, tuneable metamaterial structures, and electronic beam steering antennas, e...