ALEXANDRIA, Va., April 9 -- United States Patent no. 12,273,677, issued on April 8, was assigned to Listening Wisdom (Nanjing) Technology Co. Ltd. (Nanjing, China).
"Wireless listening device" was invented by Yingwei Wang (Nanjing, China) and Chunhong Yu (Nanjing, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a wireless listening device, which includes a housing adapted to be wearable and a top cover. The top cover closes the housing at an end of the device and is provided with a central bumped portion that includes: a substantially planar panel portion; and a raised portion, which is connected around an outer periphery of the panel portion and at least partially exte...