ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,432,480, issued on Sept. 30, was assigned to Acer Inc. (New Taipei, Taiwan).

"Wireless earphone assembly" was invented by Dong-Yu Wang (New Taipei, Taiwan) and Chun-Hung Wen (New Taipei, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A wireless earphone assembly including a charging box and a wireless earphone is disclosed. The charging box includes a first casing and a second casing slidingly connected to the first casing, where the first casing has a first recess, a cavity connected to the first recess, and sound emitting holes connected to the first recess, and the cavity is sleeved on the second casing. The second casing has sound receiving ...