ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,528,274, issued on Jan. 20, was assigned to DONGGUAN JEX INDUSTRIAL Co. LTD (Dongguan, China).

"Tempered glass for preventing generation of rainbow pattern and manufacturing method thereof" was invented by Wei He (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A tempered glass for preventing generation of a rainbow pattern and a manufacturing method thereof are provided. The tempered glass for preventing generation of the rainbow pattern is prepared by compounding a protective layer and an ultra-low phase-difference substrate layer. A compounding process is introduced in the manufacturing method to allow the synchronous stretching of a p...