ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,502,039, issued on Dec. 23.

"Hand cleaning device" was invented by Jonathan Reed Kalish (Tupelo, Miss.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A device for reducing a level of infectious agents present on one or more hands of a user. This device may reduce the level of infectious agents present on one or more fingers and/or thumbs of a user, specifically reducing a level of infectious agents present on the distal aspect of the digit; including, but not limited to an underside of a nail plate, and an area of hyponychium skin between a free margin of the nail plate and an onychodermal band of a digit, such as for example, a finger, thumb, or toe."...