ALEXANDRIA, Va., March 12 -- United States Patent no. 12,245,685, issued on March 11, was assigned to The Gillette Co. LLC (Boston).
"Manual toothbrush having replaceable head" was invented by Uwe Jungnickel (Konigstein, Germany) and Jens Alinski (Kelkheim, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A replaceable head for removeable connection with a manual toothbrush handle, the head comprising: a first end, a second end opposite to the first end, a neck having a hollow portion therein and extending between the first end and the second end, and a bristle carrier disposed adjacent to the first end. The second end comprises a second-end opening leading into the hollow portion of the neck and termi...