ALEXANDRIA, Va., Feb. 26 -- United States Patent no. 12,238,880, issued on Feb. 25, was assigned to SYNCMOLD ENTERPRISE CORP. (New Taipei, Taiwan).

"Retractable screen mobile device" was invented by Ching-Hui Yen (New Taipei, Taiwan) and Chun-Hao Huang (New Taipei, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A retractable screen mobile device comprises a main unit, a retractable unit, an elastic element, a constant force spring, and a flexible display screen. When the retractable unit is in a retracted state, the flexible display screen is supported by a first supporting surface of the main unit; when the retractable unit is in an outstretched state, the flexible display screen is supported by the ...