US Patent Issued to GM GLOBAL TECHNOLOGY OPERATIONS on July 1 for "Hot dip galvanized ultra-high strength steel sheets with high flatness" (Chinese Inventors)

ALEXANDRIA, Va., July 3 -- United States Patent no. 12,344,915, issued on July 1, was assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC (Detroit).

"Hot dip galvanized ultra-high strength steel sheets with high flatness" was invented by Zhou Wang (Shanghai), Zhisong Chai (Liaoning, China), Wei Xu (Shenyang, China) and Jianfeng Wang (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A coated steel sheet includes a steel sheet comprising iron (Fe); carbon (C) in a range from 0.05% to 0.35 wt. %; manganese (Mn) in a range from 0.1% to less than 2 wt. %; chromium (Cr) in a range from 1.2% to 6.0 wt. %; silicon (Si) in a range from 0.01% to less than 0.6 wt. %; aluminum (Al) in a range from 0.5% to 1.3 wt. %; ...