US Patent Issued to Beijing Subway Operation Co. Ltd. Technology Innovation Research Institute Branch on July 21 for "Subway vehicle electronic record system based on blockchain technology" (Chinese Inventors)

ALEXANDRIA, Va., July 21 -- United States Patent no. 12,686,423, issued on July 21, was assigned to Beijing Subway Operation Co. Ltd. Technology Innovation Research Institute Branch (Beijing).

"Subway vehicle electronic record system based on blockchain technology" was invented by Ming Li (Beijing), Jiao Zhang (Beijing), Yun Wei (Beijing), Hongtao Zhu (Beijing), Tingrui Cui (Beijing), Minghui Ding (Beijing), Fan Yang (Beijing), Yu Zhang (Beijing), Liyuan Zhao (Beijing) and Hao Guo (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a subway vehicle electronic record system based on blockchain technology, which mainly includes business view module, record information maint...