ALEXANDRIA, Va., Feb. 19 -- United States Patent no. 12,226,998, issued on Feb. 18, was assigned to EKRA Automatisierungssysteme GmbH (Bonnigheim, Germany).

"Doctoring unit for a printing apparatus" was invented by Torsten Vegelahn (Sternenfels, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The application relates to a doctoring unit for a printing apparatus for printing flat substrates, in particular circuit boards, wafers, or solar cells, comprising two doctor blades, which extend parallel to one another and are pivotably mounted. It is provided that the doctor blades are operatively connected to a gearing, which is formed in a self-locking manner and can be coupled or is coupled to a drive device...