ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,747,327, issued on Sept. 29, was assigned to Mitsubishi Chemical Corp. (Tokyo).

"Polyester film for window attachment, and polyester film layered body for window attachment" was invented by Yasuhito Mune (Kusatsu, Japan) and Yuta Hattori (Nagahama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a polyester film for window attachment, including a polyester layer (A) containing a halogen-free blue dye and a pigment. According to the present invention, it is possible to provide a polyester film for window attachment which does not adversely affect the environment when discarded, and has excellent light resistance." ...