ALEXANDRIA, Va., May 12 -- United States Patent no. 12,623,451, issued on May 12, was assigned to KOENIG & BAUER AG (Wurzburg, Germany).

"Sheet-fed rotary printing machine comprising an electrode unit" was invented by Heinz Michael Koch (Dresden-Cossebaude, Germany), Philipp Hoyer (Dresden, Germany), Ulrich Kohler (Radebeul, Germany), Wolfgang Schubert (Taucha, Germany) and Stefan Singer (Radebeul, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "Examples relate to a sheet-fed rotary printing machine including a coating unit, which includes an impression cylinder and a further cylinder forming a contact zone therewith. The coating unit comprises a charging device for electrostatically fixing sheets on ...