US Patent Issued to Otis Elevator on June 30 for "Method for indicating elevator service status and elevator call device" (Chinese Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,668,456, issued on June 30, was assigned to Otis Elevator Co. (Farmington, Conn.).

"Method for indicating elevator service status and elevator call device" was invented by Zhe Li (Shanghai) and Sisi Zheng (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for indicating a service status of an elevator, an elevator call-out device, and a computer-readable storage medium. Elevator call-out device includes a call-out button for inputting a request to cause an elevator car to move relative to a landing station where the elevator call-out device is located; a visual sign associated with a direction of movement of the elevator car indicated by ...