ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,403,512, issued on Sept. 2, was assigned to Gem Oasis LLC (Atlanta).

"Jewelry cleaning device" was invented by Jeffrey Frysh (Atlanta), Evan Spirk (Gates Mills, Ohio), Danwei Ye (Solon, Ohio), William Eugene Rabbitt (Chesterland, Ohio) and Paul Dana Stephens (Twinsburg, Ohio).

According to the abstract* released by the U.S. Patent & Trademark Office: "A jewelry cleaning device includes a housing, a cleaning mechanism, and a ring holder. The ring holder can be moveable with respect to the housing among at least two positions. The ring holder can include a moveable grip. The housing can include an upper housing assembly and a lower housing assembly. The upper housing assembly can inclu...