ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,420,542, issued on Sept. 23, was assigned to TKM MEYER GMBH (Bargteheide, Germany).
"Doctor" was invented by Christian Sauder (Wuppertal, Germany) and Thomas Storte (Bargteheide, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A doctor (20), in particular for printing cylinders and coating systems, includes a doctor edge (21), a doctor body (22), and a curved blade profile (25) which is formed between the doctor edge (21) and the doctor body (22). In order to produce a doctor (20) which reduces the maintenance requirements of a gravure, flexographic, offset and/or digital printing machine and increases the service life of a doctor (20), accordin...