ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,221,822, issued on Feb. 11, was assigned to Assa Abloy Entrance Systems AB (Landskrona, Sweden).
"Door operation management system" was invented by Sven-Gunnar Soderqvist (Vallakra, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "A door operation management system (100), method and computer program product for controlling operation of a door (1), the door operation management system (100) comprises at least a first movement sensor device (10a, 10b, 10c) arranged at the door (1), for determining a movement of the door (1); and a processing circuitry (102a, 102b) operatively connected to the at least first movement sensor device (10a, 10b, 10c) conf...