US Patent Issued to Jiangmen Yishan Metal Products on June 17 for "Process for manufacture of non-stick pans and non-stick pan" (Chinese Inventors)

ALEXANDRIA, Va., June 19 -- United States Patent no. 12,329,312, issued on June 17, was assigned to Jiangmen Yishan Metal Products Co. ltd. (Guangdong, China).

"Process for manufacture of non-stick pans and non-stick pan" was invented by Changho Lee (Guangdong, China) and Wonyoung Lee (Guangdong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A process for manufacture of non-stick pans and a non-stick pan. The process includes steps of screen-printing ink in a predetermined pattern on a surface of a pan body blank, carrying out an etching treatment on areas not covered by the ink on the surface the pan body blank by an etching process, to form concave and convex patterns on the surface of the pan body ...