ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,563,337, issued on Feb. 24, was assigned to KAETEL SYSTEMS GMBH (Munich).
"Loudspeaker" was invented by Klaus Kaetel (Munich).
According to the abstract* released by the U.S. Patent & Trademark Office: "A loudspeaker includes two diaphragms arranged opposite each other, a drive unit for deflecting the two diaphragms in response to a control signal, the drive unit being coupled to the two diaphragms such that a first one of the two diaphragms is deflected in a first direction, and a second one of the two diaphragms is deflected in a second direction equal to the first direction."
The patent was filed on July 18, 2023, under Application No. 18/354,116.
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