ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,440,321, issued on Oct. 14, was assigned to Braun GmbH (Kronberg, Germany).
"Attachment for an oral care device handle" was invented by Norbert Schaefer (Frankfurt Am Main, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "An oral care device attachment for being coupled to an oral care device handle having an essentially cylindrical drive shaft coupling end. The attachment has an outer attachment tube having a coupling end for being detachably secured at a housing of the device handle. A carrier is mounted for driven motion at the outer attachment tube. A motion transmitter is disposed inside the outer attachment tube and has a first end coupled w...