ALEXANDRIA, Va., March 12 -- United States Patent no. 12,249,774, issued on March 11, was assigned to Shure Acquisition Holdings Inc. (Niles, Ill.).

"Dual band plug-on transmitter antenna" was invented by Adem Celebi (Oak Park, Ill.), Mark Allen Kenkel (Schaumburg, Ill.), Tracy Wang (Suzhou, China) and Zhen Ma (Suzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A wireless microphone system utilizes an antenna structure that supports dual frequency bands. With some embodiments, the wireless microphone system comprises a first apparatus (for example, a wireless transmitter) and an attached second apparatus (for example, an attached microphone), where the chassis of the first apparatus and the housing...