ALEXANDRIA, Va., July 21 -- United States Patent no. 12,687,661, issued on July 21.
"Multi-layer film for fog-free mirror" was invented by Chu Hak Kan (Kowloon Bay, Hong Kong).
According to the abstract* released by the U.S. Patent & Trademark Office: "A reflective surface covering includes a reflective substrate and a multi-laver film. The multi-layer film includes a first layer of polyester (PET), a second layer of pressure sensitive adhesive (PSA) or thermally activated acrylic, a third layer of PET, a fourth layer of an anti-fog film, and a fifth layer of polyethylene (PE) acrylic electrostatic protective film."
The patent was filed on Nov. 4, 2022, under Application No. 17/980,873.
*For further information, including images, charts...