ALEXANDRIA, Va., April 15 -- United States Patent no. 12,600,572, issued on April 14, was assigned to Kyowa Europe GmbH (Leichlingen, Germany) and Industrial Software (Sofia, Bulgaria).

"Motor-driven conveyor-roller controller, system comprising such a controller and method for operating a motor roller" was invented by Dimitar Ivanov Petrov (Sofia, Bulgaria), Nikola Aleksandrov Yankov (Sofia, Bulgaria), Dimitar Hristov Suvandzhiev (Sofia, Bulgaria), Ivan Dimitrov Petrov (Sofia, Bulgaria), Kazuya Ichieda (Miki city, Japan), Randy Combs (Burlington, Ky.) and Georg Malina (Dusseldorf, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A motor-driven conveyor-roller controller for conveyor installations for ...