US Patent Issued to Otis Elevator on March 3 for "Construction lifting device and leaping methods for construction lifting devices" (Chinese Inventors)

ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,404, issued on March 3, was assigned to Otis Elevator Co. (Farmington, Conn.).

"Construction lifting device and leaping methods for construction lifting devices" was invented by Wenxiang Liu (Hangzhou, China), Jianfeng Wu (Hangzhou, China), Chenfeng Shi (Hangzhou, China), Ming Chen (Hangzhou, China), Jiajun Zhu (Hangzhou, China) and Linfeng Song (Hangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A construction lifting device and a leaping method for a construction lifting device. The leaping method includes erecting a top crossbeam above a target floor in a shaft; connecting a host platform of the construction lifting device to the top ...