ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,538, issued on Jan. 13, was assigned to MT.DERM GMBH (Berlin).

"Hand-held microneedling device for local puncturing of a skin, skin puncturing device, and item" was invented by Dirk Scherkowski (Berlin).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a hand-held microneedling device (1; 20) for local puncturing of a skin, comprising a housing (2); a drive device which is arranged in the housing (2) and is configured to provide a drive force; a skin puncturing device (6); a microneedling puncturing tool (8) which is formed on the skin puncturing device (6) and is connected to the drive device such that, during operation, the mi...