ALEXANDRIA, Va., March 19 -- United States Patent no. 12,256,186, issued on March 18, was assigned to Apple Inc. (Cupertino, Calif.).

"Wireless earphone" was invented by Zachary C. Rich (San Francisco), Kurt R. Stiehl (San Jose, Calif.), Arun D. Chawan (San Francisco), Michael B. Howes (Mountain View, Calif.), Jonathan S. Aase (Rochester, Mich.), Esge B. Andersen (Campbell, Calif.), Yacine Azmi (San Francisco), Jahan C. Minoo (San Jose, Calif.), David J. Shaw (San Diego), Aarti Kumar (San Jose, Calif.), Augustin Prats (San Francisco), Robert D. Watson (Menlo Park, Calif.), Baptiste P. Paquier (Saratoga, Calif.), Axel D. Berny (San Francisco), Benjamin W. Cook (San Francisco), Jerzy S. Guterman (Sunnyvale, Calif.) and Benjamin Adair Cousins...