ALEXANDRIA, Va., May 19 -- United States Patent no. 12,630,909, issued on May 19, was assigned to SHANDONG INDUSTRIAL RESEARCH INSTITUTE OF ADVANCED MATERIALS Co. LTD (Jinan, China).
"Ferritic stainless steel used for bipolar plates of fuel cells, controlling method of surface roughness, method of forming passivation films, and use" was invented by Huaxing Lu (Beijing), Yeting Xi (Beijing), Yunmin Yang (Shandong, China) and Jian Wei (Shandong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a ferritic stainless steel used for bipolar plates of fuel cells, a controlling method of surface roughness, a method of forming passivation films, and use. The ferritic stainless steel comprises C of le...